How to be friends with a group that already know each other

Me and my boyfriend are going on a trip with some of his friends. They all know each other. I don’t know them. I’m trying to be more outgoing. But it seems like people don’t like me or that’s just how I feel. I feel as though I make things awkward when I chime in on a convo although I do talk. I feel as though. I’m more reserved and trying to get out of my comfort zone. Please help.