1. Sneak into peoples houses with the intention of taking their weapons, armor, potions, etc.
2. Walk up to a tough looking person, and get into a fist fight.
3. Wait near an intersection, and use the Dragonrend shout to stop one of the noisy dragons passing by. Once one stops, jump on the hood of the car and begin stabbing it with your sword.
4. Walk into a store and try to barter with the clerk. If they don't agree to your price, slip on the ring in your pocket that fortifies speech, and try again.
5. Ask the same clerk if they have any iron ingots for sale. When they say no, tell them you'll wait there two days for their inventory to restock.
6. Ask a cop if they're going to side with the Imperials or the Stormcloaks.
7. Tell the same cop as you're walking away that you used to be a cop like him, but then you took an arrow to the knee.
8. Find an old man with a beard, run up to him, and tell him you are the Dragonborn he summoned.
9. Get an audience with your town's mayor, walk up to him and tell him that you've helped the people of (your city's name) and you'd like him to declare you as his new thane.
10. Find a statue in the middle of town, walk up to it, and tell the daedric lord it represents that you've completed his/her quest and await your reward.
That's all I can come up with for now. Any of you who are playing Skyrim, feel free to comment on this, or add some of your own.