I guess I don't really share, or rather my fiancee doesn't, b/c he doesn't want them begging. But, as far as human food we give them cottage cheese, yogurt, apple slices, and I may "drop" some turkey occassionally or part of a pb sandwich
Oh and they love ice, I guess I do share that with them. They follow me around when I have a glass of ice water, b/c they know they will get some.