Avri: This is the sign for duck (using all four fingers, instead of one to correct Talmage)
Mom: You can use two fingers for duck, or four.
Avri: That doesn't make sense! That is the sign for "no"
Mom: That is true. But if you sign it by your mouth then it means duck.
Avri: But Mom, if you sign it like this by your mouth it means "frog."
Mom: I know Avri.
Then we have to review the very slight differences between the signs for bird, duck, no and frog. Okay, so explaining sign language in a blog doesn't make sense. I should delete that, but it took so long to type that I don't think I will.