My 3 1/2 year old son has a friend who is 4 and has down's syndrome. I haven't talked to my son about down's syndrome or the idea that they are different in anyway. We are going to go to a Buddy Walk to support down's syndrome this weekend and I don't know if my son will ask me any questions about any difference he might see. I know that he sees a difference between him and his friend because we saw a child on TV with down's syndrome and he said "look mommy, that's like Jack". Any tips or thoughts about how to field these types of questions? Should I just dismiss any questions or do into detail?