1. Put in extra time at the gym
You’ll usually have better luck in exercise classes (especially yoga) than working out by yourself. (For more detail, read this article on how to meet women at the gym.)
Many gyms have a juice bar inside or nearby. That can be a good place to talk to women you saw when you were working out.
Build some slack into your schedule around your workouts. There’s no point flirting with someone if you have to be back at the office before you have time to get her phone number.