You people are horrible. :P
Anyways, as a longtime proud owner of dwarf rabbits, here's some tips.
1. Fresh water, alfalfa hay, and food at all times.
2. There's various types of rabbit food out there that he might like and is better than the standard "green pellets". A good one to go with is one that features a good amount of the green pellets and also includes some dried fruit and vegetable chips with it. You can also suppliment with small amounts of oatmeal which many rabbits tend to like and helps their digestion.
3. Try to resist the temptation to feed your rabbit a lot of fresh vegies and fruits. If you give them too much they'll get upset stomachs and massive diarreah, which is both a major pain to clean up and just bad for your bunny. I usually feed mine a small piece of fresh vegies or fruit once every two or three days.
4. Make sure to change its litter at least once a week or every two weeks if its a large cage/hutch. It'll help prevent illness and just make things smell better. Also use paper based litter (looks like grey clumps) instead of pine chips as pine chips give off a chemical that can be harmful to them in the long term.
5. Be sure to pet it a lot and give it lots of love, especially when you've first got it. That will both build a strong emotional attachment with you and get it used to being touched by people. Don't just let it sit in a cage and look at it every once in a while, as they'll become depressed and will be forced to live boring, sad lives. Rabbits are very social animals and need proper attention and love just as much as they need food and water to stay healthy.
6. Brush it every once in a while to keep its fur neat and remove and loose hair. This is VERY important during seasonal changes when they start shedding and they lose their hair like mad. If you don't, they'll end up eating a lot of their own hair when cleaning themselves that will both disrupt their digestive systems, and even cause fatal blockage if its pretty bad.
7. Excersize is very important, whether or not its indoor or outdoor. Be sure to allow them to run around at least an hour every day freely or in a large contained area. If you have an area in your backyard that has some grass and loose dirt, you can get a large dog cage and give him a little playground area for them to fun and dig.
8. Rabbits will occasionally eat their own poop. Its nasty but its instinctual and necessary, as they use it to get vitamins and minerals that aren't absorbed in the first digestion process.
9. Because their teeth continuously grow just like fingernails and toenails. To prevent their teeth from getting too long and requiring a vet to manually grind them down (which is a horribly uncomfortable and disturbing thing to see), be sure to get hard, crunchy things for it to chew on. You can get crunchy treats (I use Vitacraft carrot sticks once or twice daily) and gnawing wood blocks at your pet store.
10. Similarly, their toenails need to be attented to in a similar fashion. So long as they have a proper area and time to dig around one some rough but loose dirt, you shouldn't have to worry about it. However, if they do get too long as they sometimes do, be sure to get some animal fingernail clippers to keep them at medium length. Its VERY important to keep them trimmed as they run a very high risk of breaking their toes if they get too long by catching them on rocks or the grates on cages. I know this from personal experience because it happened to mine twice and it was exceptionally painful for him. One thing to remember when cutting their toenails is to NEVER cut them too short. Unlike human fingernails they have some small arteries and veins at the base, so if you but them too close to the base, it will both cause it extreme pain and will cause it to bleed. So always cut at medium length, and not short length. If you're too uncomfortable with it or your rabbit is too fidgety, then take it into your local vet and have it done.
11. If your rabbit is overly hyper and seems too tenacious and aggressive, you might want to consider getting it neutered. It will kill the seasonal "spring fever" and will cause him to mellow out quite a bit. There are health risks involved though, so be sure to talk with your vet about it. Be sure to make a decision while its still young, as its a really bad idea to do it once they're past puberty or adults.
12. Neighborhood cats are your rabbit's worst enemy. Rabbits are prey animals and cats will recognize this instantly. If you can train your own cat and rabbit to get along, but its essential that you keep an eye on your rabbit anytime its not completly enclosed outside. Since rabbits are fast they'll usually escape being killed for a few minutes so you have a small time window in case your attention gets diverted, but don't hesitate for a second to rescue him if you know something is going on as they'll tire out just like any animal does.
If you have any other questions, throw them on over.
