Spinning goes something like this:

1. Walk in. Find a bike. Feel self-conscious about the bike shorts. Adjust the bike. Look at the clock and wonder if you should start warming up now because you don't know how long the instructor will take to get there. You have plenty of water with you and a towel.

2. Everyone else is pedaling, so you get on to start warming up. The instructor takes another 5 minutes to show up because you were good and early.

3. Instructor turns on loud, thumping music. Hopefully it's something you like. You do some stretches and such on the bike to warm up.

4. You suffer for 45 minutes. You'll do standing drills, sprints, simulated hill climbs. Instructor might divide class up into sections to do some sprints. But guess what? You're in control of the resistance, so you can really set the workout to be as easy or as hard as you like. If you're on an actual spinning bike, you can't coast. This takes some getting used to.

5. You do some on-the-bike stretches at the end. You're dripping in sweat. You feel incredible. You vow to come back.