All done or more?

We've been teaching Benjamin baby signs since 6 months old. At first it was silly, making the signs for milk, all done, more, mommy, daddy and sleep but then he totally got milk and so when he wants a bottle, he makes the sign and all is well. Our next step was teaching him more and all done and this week he's been using them and it's been hilarious because I don't think he gets when he's supposed to use them. Here are some examples:

Super cute, huh? I love that he's trying to communicate.

Oh, he only cried for 20 mins tonight. WOO HOO. Progress!