Does she like me?

today we went to a fair with some friends but when they left and it was just me and her she acted really weird, she wasent really happy or peppy(she allways is), when ever i asked what she wanted to do she just kept sayin "i dont know" like a hundred times, then she said she just wanted to walk around, and when we were walkin she just kept messin with her hands and hair and well i dont know, and shes allwas very friendly with me and well i really dont know