Does anyone have any advice on potty training a little girl?

How old is she

You could make a chart and every time she uses the potty she gets a star, then after so many stars she gets a reward.

All it needs is your encouragement. Tell her how she is such a good girl. And that you feel proud about her potty training.

While potty training mine i made it a game. As long as you keep up the interest and excitement They will keep it up. Us Mom;s tend to fall off afte a bit and so do the kids.
The chart above is a great idea Also have a goody bag if they tell you they get a goody from the bag it can be little stuff like Dollar store toys or healthy snacks fruit roll up or small baggie of fruit pieces that you make in small baggies etc whatever she likes and always always make a deal out of it.

Makin g sure to ask often especially at certain times and No offence but basically it is like potty training a puppy:0) If you watch they will give signs that they have to go. Mine would start looking for a place to squat where he could not be seen or the dance where they start shimming you ask when you see the signs or tell them lets go try.

Good Luck once they get into the habit it will be easy and habits do not take long to become habts:0)

i also did the chart idea with my little girl. it worked really well. in fact, i let her make the chart with me and she got to pick out what stickers she wanted to use each time she went on the potty. i also gave her a lot to drink so she would have to go often. the more pratice the better! one other thing i did that got her really excited was a phone call from someone special when she went on the potty. i got this idea from Dr. Phil (this was years ago). i got one of my girl friends involved. my daught loved Dora at the time. so, when she went on the potty i had her call Dora (my girl friend) and tell her about her success and Dora got to say how proud she was of her. this worked great. it was a BIG deal to talk to Dora. we did this for 3 days and she was potty trained. so, that is another idea that is a little crazy you could try. good luck!