When at the gym, there is this the one girl who works out the same time as I do. The past week, I've caught her glancing at me and we have made eye contact a few times, but we both wear our earbuds and listen to music. It's like we both know what the other person is thinking, but neither of us know how to act. How is a good way to go about approaching her without being a complete ass or getting this completely wrong, but we've crossed paths and eyes too many times for it to be nothing, at least I think. Any help appreciated.
Looking for a subtle approach.