Gatherings could be a fear for a lot of people, and it also could be a source of happiness to others. It all boils down to you being comfortable around certain people, doing certain activities. Or maybe it is just about how comfortable you are with yourself and your surroundings.
You don’t really have to be “one of them” to share a moment; meaning you can do your own thing in your own style, and still have fun as the others. We don’t all have to like the same things, it is good to be unique and different, and it is better to be yourself, than a copy of someone else.