Both of my kids had trouble with transitions at times. One way I got my son to go many times was to say I bet you wish you had a magic carpet. I would squat down and talk to him and talk real sweet, and say I bit the magic carpet would be nice to you didn't have to walk more now. Then he would go.
My daughter never went for the magic carpet. My son would sing to her "let's do a marching parade" and she would follow him anywhere. We even used this to help kids who were having trouble leaving our fun playdate.
