If you are planning on teaching your rabbit to come to its name, pick a short name that is easy for the rabbit to remember and hear. If you're rabbit's name is long, pick a nickname that you call it every time you want it to come to you. Call it the same thing every time you want it to obey your command. It will get confused if you expect it to respond to "Fluffybutt", Lulu, "Princess", and "Precious".
This trick takes a little longer then others. Every time you pet your rabbit, hold/handle your rabbit, call it by its name. Before it can come or respond to its name, it needs to know what its name is. When you buy your rabbit from me, if you already have a name picked out, let me know. I'll begin to make sure the rabbit knows what it's name is, and it'll be easier for you, once the rabbit has settled in, to begin teaching it this trick. As long as you don't change its name, of course!
To prepare for this trick, have your rabbit near you - only about an arm's length away. Call it by its name. Since it will already be right next to you, when it perks up or pays attention, give it a treat (an oat or two is a good idea for younger bunnies, small portion of fruit or veggie for a rabbit over 6mos) and praise it/pet it.
Keep doing this several times per day, but only once or twice at a time. Rabbits have very good noses, and once they smell that you have a treat the only thing on their mind is that treat; they won't be able to hear you after that!
After a couple weeks, no matter what it's doing the rabbit will come to you when you call its name, expecting a treat. Keep giving it the treat (it's okay to change the treat up a bit), until it's preforming the trick reliably. Gradually cut back on the treats.
Being praised and getting extra petting/snuggles might be enough for some bunnies. For others, it's all about the FOOD! So do both at first to find out what your rabbit likes best.