Baby signs

So, Joel learned the sign for more, well way back, can't recall exactly when, but sometime before 1 yr. He then just recently started signing all done (mind you we've been signing this and a few others to him for a while now). And even more recently he signs please...it's so cute! He kind of came up with his own versions like for please he rubs his tummy with 2 hands, again, it's so cute!