Your son won't remember exactly, but he'll pick up on your excitement and you'll all have a good time, probably even your hubby.
How can anyone resist an infant dressed up like a vegetable?!
ALSO: I never thought for a second that you would actually give candy to the baby. Most of these people must not have children. LOL! Yes, dress him up & visit your neighbors and/or friends, they'll love seeing him (and you)!