Take it easy and flirt a little. However, checking this article helped me to check my personal experiences that were good when meeting guys, like the flirting thing and the guy's response. When receiving criticism, don't jump to feeling offended. Attending LGBTQ events is a great way to support a cause that you're passionate about and will give you the ability to meet eligible singles. Or even maybe ask if he's interested in boys.
As time went on, the two of you would bump into one another at the gym and became workout buddies.
And he never once made me feel like he was looking for something. Think of what he would like and do it. Or you could just talk to him and casually bring up the subject.
Super nice guy who apparently had been working out at this gym for several years.