Very casual, relaxed, no pressure, feels like a hike in a state park.
Not really any night life to speak of.
Belleayre is a state park. It's a fun place to hang out without pressure to be seen. It's not a "resort" so don't expect to find people parading around looking for action and parties. Go into the lodge, drop your boot bag in a bin, change your clothes in the main room, take your time, relax. Buy lunch, or bring your own. The point is skiing at your own pace. It's probably not overly challenging, but I'm always able to find something that makes me work at technique. The place really does feel as comfortable as a hike in the woods with a good friend. I tend to ski there mid-week, when there is no line at the lifts, but even on weekends, they handle the crowds just fine.