So basically I am hanging out in a public space, getting some work done. I managed to spot somebody who I have seen attend a fitness class I am a semi-regular at. Should I go say hi and introduce myself? We are sitting quite far apart from each other, I don't think she has noticed me, and theres no real natural way for me to come up to her, other than like, getting out of my seat, saying a quick hello, and then going back to my seat. Should I just say hello next time I see her in the fitness class and mention seeing her? Would she think I am bothering her if I come up to her when she is doing work?