Ok since there's barely any substantial EN guides out there Refrain makes the entire dilemma easier.
However I'll be using the JP @Wikia as basis for everything here until I can get a screen grab of all the choices so the translations will be very different cause yeah its like that...

In the PS3 version of the game you can't give gift items to your party characters so making the relationship grind very "eroge" like. Don't worry about selecting gifts you can craft them in the latter part of the game or unless you are a dirty cheater and somehow got all the items in the game available then yes you can gift the items to your party members when you are in town. They only have 1 set of items so yeah.

in Refrain Mode as you unlock Jinnis and Excella by default. You can now "date" them if you wish to do so as they werent exactly "relationship" material back in the PS3 version yes they were playable but they are essentially non-interactable characters in Town. Which also means they have their own character endings as well. Whats not to love about a certain Magical Girl searching for her mother's approval and a Sensei who always despairs.

Time choices arent exactly new in the eroge world... most infamously used in School Days and their spin-offs yes Makoto's AI does make horrible choices try it you are most likely going to end with a bad end more times than not. I'm pretty sure the Acronym itself is just a play on Moe and really stands for nothing.
SMEE if not HOOK-SOFT games also happen to use the same thing so yeah...

Each Party Member has an ending if you are in Refrain Mode that includes Jinnis and Excella. Think Star Oceans, any of the Atelier games. Just trip the flags and you will eventually get there. How to view them well as I havent exactly finished the game (PS3 included) I'm not sure if you have a camp site before the boss battle but if you do then thats the place where you get to talk to your party members to unlock the ending event once you are done with the Final Boss. After that you should get Epilogues for Sonia or Kirika if you ever did their endings first. (again this was a DLC)

These only happens once per chapter and they happen the first time you talk to your party members in town. The Choices are jumbled in no specific order. So I guess putting the choice number wasnt the right call either.

Chapter 2
select "that you arent feeling comfortable with the Town yet" (Second Choice)

Chapter 3
select "I will look for him" (Second Choice)

Chapter 4
select "I train everyday" (First Choice)

Chapter 5
select "If that time comes, I will get a hold of myself" (First Choice)

if feeling neutral select "I'm sure I will improve" (Third Choice)

Chapter 6
select "But, I won't permit it" (Third Choice)

want Sonia to hate you? select "I'm sure we can get along" (Second Choice)

Chapter 7
select "I still have a long way to go" (Second Choice)

for neutral select "I'am honestly glad there is no such thing" (Third Choice)
for negative select "I also think the same" (First Choice)

Chapter 8
select "I have decided to stop it" (Third Choice)

Chapter 2
select "Nothing, Really. I just wanted to talk to you" (Second Choice)

for negative select "...Could you please speak normally?"

Chapter 3
select "I'm not angry" (Second Choice)

Chapter 4
select "You will slowly get used to it" (Third Choice)

Chapter 5
select "I still don't understand it very well" (Second Choice)

for neutral select "I don't think he's a bad person" (First Choice)

Chapter 6
select "Seems like it" (First Choice)

Chapter 7
select "I don't get that feeling" (First Choice)

for neutral select "I'm in your favor Kirika" (Third Choice)

Chapter 8
selection "It's going to be fine, I'm still here" (Second Choice)

Chapter 2
select "If possible I don't want to be honored so much" (Third Choice)

Chapter 3
select “I want you to like me”

For negative select “I’m not happy about it”

Chapter 4
select "The Feeling's the same" (First Choice)

Chapter 5
select "Is that so" (Third Choice)

Chapter 6
select "If I can be of help then I will go" (Third Choice)

Chapter 7
select "I'm in your favor" (Second Choice)

Chapter 8
select "I'm also scared" (Second Choice)

for neutral "I want to see your smile" (First Choice)
for negative "being scared is natural" (Third Choice)

Chapter 3
select "It got to be fish" (Third Choice)

Chapter 4
select "There were no ghosts" (Third Choice)

Chapter 5
select "Then I will take it" (Second Option)

Chapter 6
select "I like it hot" (First Slection)

Chapter 7
select "I like the [Roar of the Pyromancer] better" (Second Choice)

Chapter 8
select "deep-friend skewers for good luck" (Second Choice)

Chapter 4
select "You will get used to it" (Third Choice)

for neutral select "You havent gotten used to it huh?" (First Choice)

Chapter 5
select "Being Over-zelous can also be a pain to deal with" (Second Choice)

Chapter 6
select "I still don't get it" (First Choice)

for neutral select "You can take a break from time to time" (Third Choice)

Chapter 7
select "This is nothing, everything is fine" (Third Choice)

Chapter 8
select "I have to thank you also" (Third Choice)

Chapter 5
select "takinga break" (Second Choice)

for negative "Training" (First Choice)

Chapter 6
select "In the inn" (Second Choice)

for neutral select "In the castle" (First Choice)
for negative select "on the streets" (Third Choice)

Chapter 7
select "Yes, I get that feeling" (First Choice)

Chapter 8
select "Thanks for being a friend" (Second Choice)

for negative "It's the results of your efforts" (Third Choice)

Chapter 2
select "I'm Fine, but what about you?" (Second Choice)

Chapter 3
select "I want to become strong because people have faith in me" (Second Choice)

for neutral select "Thank you for worrying about me" (First Choice)

Chapter 4
select "I want to see your energetic face" (Third Choice)

Chapter 5
select "What ever it is why don't we search it together" (Second Choice)

Chapter 6
select "I want to help your" (First Choice)

Chapter 7
select "I want to stand next to you" (Second Choice)

for neutral select "I don't want to shame your name" (Third Choice)

Chapter 8
select "Once everything is done let's have fun together" (Third Choice)

Chapter 2
select "Your body seems to be in worse condition than mine?" (First Choice)

for neutral select "I was able to get some rest, I'm sorry for having you worried" (Third Choice)

Chapter 3
select "He seems reliable" (First Choice)

for neutral "Incidentally you two are like the same" (Third Choice)
for negative select "I can't match him with his energy" (Second Choice)

Chapter 4
select "What does it mean to control my recklessness" (Second Choice)

for negative select "But what if I can't do it" (Third Choice)

Chapter 5
select "I got it" (Second Choice)

for negative select "It's fine, since you are there" (First Choice)

Chapter 6
select "You are'nt weak because you are here now" (Third Choice)

for neutral select "You are here now because of what happened back then" (Second Choice)

Chapter 7
select "How your duty ends is for you to decide" (Second Choice)

Chapter 8
select "Let's Return together, Jinnis" (Second Choice)

plain and simple they are a pain. If your bond is good with your fellow party members you can invite them for the night (you can also give gifts when inviting them so you can get 2 heart ups if you answer correctly) in a short dialogue event sometimes you get choices but they are very RNG based the events arent tied to the plot progression but I suggest you start doing Night events once you already have completed the Party. As using the @wiki as the basis fron translation is a pain because it revolves around the Situation you are in <_<

http://wikisp.com/resonance/moes#ja84b433