Stephanie, you might think about approaching the management and perhaps a few of the other users of the place and telling them in advance that you're planning to start presenting as female. This might make things easier for you rather than just changing your appearance and springing a surprise on them.
This is the approach I took when I came out. I live in a very small town where I'm pretty well-known, and I knew well that once I was out, I was out. There wouldn't be any hiding from anybody.
I didn't think it would be a good idea to suddenly change my appearance and spring a surprise on everybody. I thought they might flip at that. I really had no idea how they would react, and if their reactions were negative, then, as I say, there I was out in the open with no place to hide.
So I went around to a dozen or so people that I knew best and who knew me best and announced my intention. I didn't tell them "I'm a woman" or even "I'm a transgender woman", since that would leave everybody baffled. Instead, I simply said, "I'm transgender and I'm going to start presenting as female." That was something they could understand, and to my amazement every last person I approached responded favorably.
So if, like me, you're feeling a bit unsure of yourself or you want to test the water before you jump in, you might try this strategy. You're giving people a chance to prepare in advance. That might make it easier on them and hence on you. At any rate, it worked for me. Good luck!