Does my crush like me?

I have a crush on this girl and im just wondrin if she liks me the same. I think shes giving signs and hints but im not sure. Like this one time for example, she and my friend were lik hangin out for lunch and lik we wer just sittin down on a hill and talkin and i was sittin with my knees up and she was lik holdin my leg the whole time. We talk lik mostly every cl and we say bye to eachother after school. When she talks to me shes lik straight but when other ppl r around when we talk shes lik all playful n joking