So a girl is coming to the gym for a week or so at around the same time I workout. I've made eye contact with her a few times and today when I was doing cardio at the end she sat on the bicycle besides me and said hi and I reciprocated. Now I know she's interested because my sister who sometimes goes to the gym with me told me one day thay she was checking me out. Now how do I start talking with her in the gym. I generally have headphones on, workout and gtho of the gym. The main problem is the coach of the gym is really nosey and doesn't let any guy talk to girls in the gym. She is kinda new to fitness and skinny but average looking and I don't usually go out much so don't have any other plate. Any help as to what to say and how?