This is a situation where you have to know your opponent very well, and it depends on your position. If you have an early position raise with a caller and possibly a re raise in front of you, it might be a good idea to fold the small pair. However if you are facing an opponent who raises often and you pick up the pair in late position it might be a good idea to come over the top of them ( you have to know that they will fold to the re raise though) You could flat call, I usually dont like that option though in a multi way pot.