If she asks you to go to the gym (fitness center) to exercise, it is obvious that she likes you, because both men and women who go there to exercise wear very little. Men usually wear tight sweatpants with bare arms, while women usually wear vests and tight shorts. Everyone is sexy. You can enjoy each other's sexy parts while exercising, chat with each other, dance fitness together, and have dinner together after taking a shower. You can be generous.