welcome to site. many are nice and friendly but as in all chat room we get a number whom seek to annoy or cause issues. you will get to know these given time.
you probably feel unsure at moment as new and not chatted to anybody. that will change as soon as you say hi in main room and throw in 2pence worth of comment or just hello.
it can take a while before you sort out good form bad . private messages form men are often to be expected sadly and nearly all are unwanted .. sure you can understand why.
try and chat to females in room first. they often know whom to avoid and whom will chat freely and nicely. good luck .do hope you enjoy it. failing that get back to me and i will suggest another chat site.