Ok so i was at the gym yesterday and there was this HBS id say about an 8 working out with what seemed to be her parents i think, anyways i would glance at her here and there until she noticed and after that id stop but i would catch her glancing at me every now and then and id smile, while i was at the door waiting for my friends she was sitting at the juice bar with her parents talking to them, and looking at me, so i looked and held eye contact with her for about 7 to 10 seconds, left eye to left eye and i smiled; so what should my next move be, if she works out with her parents approaching may be hard

I see 2 options

1/ If you are close to her, use "serendipity" and open her during her work-out (during a rest between sets!). Play it indirect with situational opener like "You don't want a pencil neck like olympic swimmers right? [...] Your form on that exercice is wrong, you have to row that way to not have a pencil neck". DHV on your (female) anatomy knowledges and game on.

2/ When she looks at you, try to forcing IOI (smile, raise your water bottle,...). If she responds well (IOI), make her a sign to come talk to you. If you isolate her by doing it, you can play more direct and tease her on her way to "always" look at you.