Most people are at the gym "doing their own thing". Don't be put off by others. Ask questions of staff if in doubt.
No sense injuring yourself and being prevented from working out.-- (Trust me, it is easier to do than not if you are working with weights and not using good form. That is what the mirrors are truly for...constant feedback.)
Honest injun...the first time I got on a treadmill, I tried to fix my shoe while on the moving belt and got shot off the back in an embarrassed heap. It's survivable. LOL