As a vegan, what are some misleading foods NOT TO eat?

I have been vegetarian over five years and am now trying out going vegan. I know as a vegetarian there were some foods I had to watch out and not eat like gummy bears, pudding, jello, because they had gelatin in them. I am just wondering if there are any foods to watch out for as a vegan that I may think are okay to eat, but are really not...?