Remember that a child knows what's negotiable and what's not. In about 2 seconds. Put her down with the regular 10-15min ritual, then lay her down. Just a smile and a hug. If she's in a crib and plays around, pay no attention.
Some kids take a long time to put themselves to sleep.
If she cries, wait a few minutes, then go in, pat her and lay her down, but don't let her cry for more than 10 minutes. And do it again and again, without losing your temper or saying more than 'nite, nite. My first-grade son is intensely competitive and can not handle losing at anything. He has major meltdowns at scouts, school parties or in the neighborhood when he loses or is on the losing team. These kids hardly know the rules at 6 or even 7.