Amber,
It is a numbers game. Literally, the more often you expose his
brain to the signs in context -- the more likely he will pick them
up and start using them.
Check your local library for ASL videos (DVDs). Play those for
him on the TV
in place of some other children's program (like Teletubbies) and see if he likes it. Or just have the video
playing in the background while doing other activities. For
example, if you are folding clothes, you could have a video of sign
language going on the TV instead of a soap opera (or whatever).
If your local library doesn't have videos, then ask the librarian
about "interlibrary loan."
Bill
Also see: "
Advantages in Signing with Babies"
Also see:
"Baby Signs Tour"