If you haven't encountered the push-up quest, you soon will. This requires you to type the words "push up" in chat one thousand(!) times. I didn't want to do that, so I made this AHK script.

AutoHotKey is a program that allows the user to make keyboard and input macros ranging from simple to complex. Needless to say, you'll need it installed for this guide.

As I mentioned above, getting a script to work is easy. Below is a script that will print "push up" to chat every ~1s while CTRL is held.
Just copy that text, put it in notepad, and save as "push up.ahk" or whatever you want as long as it ends in .ahk. Hold down CTRL for about 10 minutes and you'll have yourself +3 strength and a new emote!