For both girls (8 and just shy of 3) I got their potty early and let them get to know it. I know that sounds goofy, but if they get time to sit on it and drag it around it seems less intimidating to them.
I started by taking them potty with me and we would have "potty time" about every 2 hours. We would sit on the potty together and sing songs or read books.
Also, I got a book of Disney Princess stickers at the store. When she goes in the potty, she gets to pick the sticker to put on her paper. (I taped a plain paper to the wall.) And she gets to pick one to wear. That is a slight motivator.