sort of, sometimes appendix entries will come from interacting with random objects, if you care about completion then that's a reason to do it

I will continue clicking. Thanks

It's hit or miss. Sometimes you'll click on everything in a room and just get nothing but Date saying "It's a table" and it feels like a waste of time. Other times you'll get funny dialogue and commentary from Date's partners so it's worth it to see some funny and weird exchanges.

So you'll kind of want to test this with every room to see if you're getting dialogue. If you clicked on eight things in a row with no flavor text then maybe just give up and wait for the next screen.