The thank you sign is a great gentle introduction to manners. It is great to get older babies in the habit of saying "thank you" when given something. The thank you sign is also a great way to remind older kids to be polite when out in public without being overbearing or embarrassing them.
This is a wonderful sign to introduce early in life as we begin to teach our babies the meaning of gratitude. This sign is best learned by example and consistent use.
Get all four volumes of Baby Signing Time...