What are those funny bunny stuff?
It will take patience. But I think you can gain his trust by letting him free. Sit on the ground and have treats with you. When I comes near you, offer him treats. Maybe if he doesn't come near at first, you can throw them at him, well, not at him but no the floor hehe. Try to tame him like that. Don't try to approach him yourself. Let him do it by himself, so he sees you're not going to hurt him, and so he sees that when he comes to you, it is positive, he gets treats. Do it every day.
Hope this helps :)