Twins and Talking

Parents of young toddlers are naturally very concerned about their speech development. Maggs, a mom of 20-month old boys, wonders, "Can anyone give me some ideas on what games or exercises can be done to help in the development of speech in twins? The twins (b/b) are 20 months old. One is picking up words pretty easily but the other one doesn't seem to be picking up words as well." Stop by the message forum and post your thoughts on this issue. How did you teach your twosome to talk?