Are you sure you're approved to coach? To check, open Profile, then go to the Coaching Status tab. If you're not approved, that's easy to fix. Just watch the video, check the box and click Submit. You'll be asked to take a quick quiz to demonstrate your knowledge. If you don't pass the first time, no problem. Refresh your screen and try again!
From there, just head back to the main page and search for a partner!
For all the steps on how to coach, click here.