Potty?

Olivia walked up to me yesterday before dinner and said "potty". So I asked her if she needed to potty and she said "yeah". Once we got to the bathroom, Olivia started playing with her bath toys, so I thought she just said potty to get me to open the bathroom door. I again asked if she needed to go potty and again she said "yeah". I quickly stripped her of her pants, and diaper and sat her on the pot. After a few seconds Olivia got up to reveal, nothing. I thanked her for trying and said "let's go get a diaper". We both went into her bedroom, but while I was getting out the diaper, Olivia ran out. I called to her a couple times and told her to come back in, without any success. I went into the living room, where Olivia was standing with her little bare butt hanging out, peeing on my living room carpet. At least she knows when she needs to pee.