Patience, lots of patience's and time. @Karleen Garcia is right, every piggy is different. Hunter quickly adapted to me and we've created a bond. But some pigs take a lot longer. Here's what I did with Hunter. You can also watch this Yutube video on how to bond with your pig: [video=youtube;sJygRkYXgEA]https://www.youtube.com/watch?v=sJygRkYXgEA[/video]
Whatever you do, don't chase the pig around the cage, that scares them. Floor time was tricky. Hunter doesn't like to be picked up and I respect that. So I devised a clever plan. I placed a treat in her carrier and allowed her to go inside willingly. Then bring her to the floor and allow her to come out on her own. I don't have to chase her or force her.
From time to time, when she's awake - I place my hand in the cage. I don't try to pet her or pick her up I just let her come to me. To sniff, to nibble ect. If she doesn't come to me, I know she doesn't want to be bothered, so I leave her alone.
When I started playing with her on the floor I made sure she had tunnels, hiding places and lettuce (her fav) as treats. I remained still, let her do her thing. When she came near me I give her a piece of lettuce. Now she knows I have something she loves and climbs all over me.
My last tip. Don't get frustrated. It takes time to create a bond, and gaining their trust. But overtime, you'll see that he does love you. I hope these tips will help.