As a point of reference, you may not get the warm welcome you expect in a gay club. It really depends. They may like it. They may not. Just saying. Don't be surprised if they don't because a cross dresser really doesn't fit in. You're not gay and you're not pretending to be. Well are you? More likely, you're just as straight. Man dressing as a woman for as far as they're concerned unknown reasons. Sorry to put it so harshly, just giving you their possible perspective. You might be more likely to poke the interest of the lesbian crowd. If you think about any interest you might have with them. Which is probably none. You'll understand where the gay thing ends up going, pretty much nowhere.
Something else to think about is. How do you carry yourself? It's one thing to look like a man in a dress. It's another thing to act like a man in a dress. It's the incongruity in people's mind. That will attract attention. You don't have to be super. Fem, but if you walk like a Neanderthal lumbering around like a guy. It's going to detract in people's mind from your overall presentation. You can't expect to attack this from all angles on your first try. Something where you can sit down for a while. Might help you ease in to feeling comfortable in your new surroundings. When I stand up, I'm the tallest person in the room. That's when I know for sure I'll be noticed. If that's the kind of attention you'll get, you need to be mentally prepared for it. So now you know, it might be coming. Think like a woman would when she knows she's wearing uncomfortable shoes. Plan for a lot of sitting down. Hopefully your shoes will be comfortable. You may not want to wear something too extreme that you can't walk gracefully in.
I'll stop rambling until next comet.