When you want to feed, but.....
.....then recognize this sign http://i.imgur.com/Q7gk3OO.jpg
.....then recognize this sign http://i.imgur.com/Q7gk3OO.jpg
NononononoNO!
It's not when you want to feed, it's when your team mate wants to feed! Then you put up this sign and shove his face in it and be like, "You know how to read don't you?!"
I may have been a bit aggressive there, but you get the idea.