How do I talk to him and not be creepy?

So a couple days ago I saw this boy wandering around my church after mass looking like he was looking for someone. We made eye contact for about a minute and then I had to leave with my mother and grandmom. He was probably one of the most handsome guys I have ever seen. He was tall, had dark drown hair, big brown eyes and he looked to be about my age (15.) I wondered if I would ever see him again since this was the first time I had ever seen him at my church before. To my surprise he became a new sexton and I saw him lighting candles on the alter. I really want to talk to him, but I don’t altar serve anymore because I’m in High School. My dad is a Deacon and is always back in the sacristy so that might be an advantage. How should I get him to talk to me and possibly text me. I don’t even know his name. Please help!