Is alcohol necessary to fit in at parties?

what's up people. I'm not much of a drinker at all, and I've never been to a party where mostly everyone is drinking. But all of my best friends want me to come to a party tonight where everyone will be drinking, and I'm just kinda worried I won't fit in. I'm a talkative person. I have fun and everything, but I don't wanna kill the mood. Any thoughts on this?