Use a bit of common sense.
Common sense won't have you, in your first week:
- Bombing hills
- Riding with traffic
- Riding brakless
- Trying to learn to skid
- Racing taxis
Or any other craziness.
Just take it easy, buy the Capo (it's a good bike), put a brake on it, ride through the park, ride long, get sore, get exhausted, get stronger, and before you know it you'll be fine.
Just Do It.