If you have any desire to teach your bambino sign language... do it! We occasionally signed a few things with James, never thinking we did it enough for him to actually learn it. Then outta of no where he starting communicating with us.
I think it is so darn cute and not to mention... helpful!
My mom thinks that teaching your baby to sign is silly. Some how I bet she will change her tune when she sees first hand how cute it is.