Do you have anyone you could go with? Also wear baggy clothing instead of tight clothing if your worried about guys looking. But to be honest people are just busy with their own workout. If your unsure how to use the machine just stand at the side somewhere and pretend to stretch or go on a machine that you know how to use and watch someone else use the other machines but don't make it obvious lol. I was like you when I first started, I just looked up videos on how to do stuff or used the machines without any weights or used really light weights when first starting.