K.M.
I agree with the posters who said to be vigilant about trying to anticipate when he'll bite. I would use distraction and redirection. I would also remind him that "teeth are for chewing food" or "teeth are for smiling." I would also tell him what he CAN do as part of redirecting him. "If you're excited, you can clap your hands!" Or "If you're upset, you can stomp your feet or jump up and down." I think it's really important to tell kids what the appropriate thing to do is because they won't know on their own at such a young age. I personally didn't do time out at that age because I think they are too young to get it. It's better to channel their actions in a more age appropriate way.