HELP!!

For all of my two readers, I have a question:

Am I required to get presents for my co-workers at the store I work at?
When I was in college I worked at the library and while we weren't asked to get presents, I always made something for my bosses (they also gave each of the student workers a basket of goodies). Last year, I wasn't going to do presents, but my boss told me she got a present for me, so then I made something for her and for my coworkers. I don't know if I'm supposed to do anything for my coworkers this year. Any advice?

Also, remember this post? Well, here are the pictures.