All Done?

Evan is starting to understand the idea that he can communicate his wishes to us. We've been using some simple signs with him. He has been using the sign for milk for a while but in response to seeing me use it, not on his own. Well, he now signs "all done" - see picture above. Only - he signs it after just about every bite. Since he's not been eating very well for the past few days (teething, shots, heat?) I'm not sure whether we should focus on reinforcing the message (i.e. take him out of the chair as soon as he indicates "all done") or continue giving him food until he stops eating.

This morning, he decided to make matters more interesting by actually repeating the phrase "all done". Verbally. We celebrated his achievement by listening to him.