It takes a while for some folks to warm up to newcomers simply due to a lot of mental health and trust issues they struggle with ... Also, you may have entered a room when everybody's distracted by something else, already involved in trying to resolve a heavy issue, or they may have simply taken a break or something ... I found that if I enter, say hello and wait a bit, someone will eventually say something ... Now, get on back in there and be not discouraged ... !!! ... ...

Oh, and by the way ... Welcome to PC ... !!!