Intimidated by the gym down the street!

There is a small gym right down the street from me, within walking distance. I was at the grocery store next door to it and I wanted to check it out, but when I looked in, it was full of men.. young men. Now don't get me wrong, I love men-- they are wonderful creatures in general.. But I felt intimidated, like if I walked in there they would all be staring. So I put the phone number of the place into my cell phone and figured maybe I would call later. I never did because I just think I would feel uncomfortable and not go. I really want to work on my arms, though, and I don't have weights at home other than 3 pound weights. I guess I will be attempting push ups!