I think approaching it this way with a child in a confident and supportive way is the best way to get cooperation and to make it a pleasant experience for both of you. (babycenter.com)
No matter which path you choose try to be patient and make it a pleasant experience for your child. (nocrysolution.com)
Make it a pleasant experience by reading a book to her while she's sitting on the potty. (babycenter.com)