If you've never played live, it can be intimidating your first few times, period, male or female. I think we all psych ourselves out at first, and think that everyone's going to be judging us. But think about it: are you wasting time judging people at all in life, and would you do so at a live table? Probably not, and anyone that does isn't worth a second thought in the first place. Let them judge, who cares what they think?
I'm a female player, and I have played live quite a bit (although it's been a long time since I last played live--life gets in the way, just don't have time
). I had the jitters at first, but I reminded myself that I knew what I was doing, and to play smart, and it would be fine. I sat out for a few hands before the big blind just to watch the table action, and made mental notes. Now, I very rarely have had instances of people treating me differently because I'm a girl. There have been some old codgers who would almost be offended if I raised them, others who think I'm easy to read (because I'm a woman, and I only play the nuts, of course--lol), and loudly claiming what they
thought my hand was (they were almost always wrong). I just made mental notes, smiled, and made sure to exploit that to my advantage. On the other hand, I noticed that some guys would soft play against me because they "felt bad" and didn't want to "bully me". Although, to be fair, those times could have been because I'm friendly at the table, and like to chat with players, so it could have had nothing to do with the fact that I'm a woman. Ok, fair dink'um, I'll take advantage of that too!
But for the most part, nearly everyone treats you the same. There are a lot more younger players these days who aren't concerned with stereotypes and such, and will just as willingly take your chips as anyone else with no regrets (as it should be). So the best advice I can give is to just be alert, play your A-game, and make mental notes as you go. But most importantly, never let anyone intimidate you for any reason, especially just because you are a woman ("weaker sex" my ass! lol).