Does this girl like me??

ok well im a junior in high school and im really really shy and shes a soph and i have her for gym shes always staring at me and she aways stands kinda close 2 me or sits close 2 me like today for example i was sitting on the stands on the top she was sitting in the middle and she was scooting up... and when cl is over a couple of times she will walk behind me and a few times or hands slide p each other like she was trying to hold them and like i said im really shy sooo idk if she likes me she trys talking to me everyonce and a while and stuff but some times she ignoring me like yesterday we where playing ping pong and she played with the other guys but when it was only me and her she sat down she didnt want to play she did say anything but she just sat down so please help me! and if you think she likes me please help me talk 2 her bc like i said before im really shy thanks =)