Attention Girls-Does this shy girl like me?

theres this shy girl in my cl and shes very shy but when shes around her friends she isnt..when i say hi to her and shes with friends she is confident and says hi but when she is alone and i say hi to her she is quieter and more shy..and another wierd thing is sometimes when im in cl her friend (boy) says that she is callin me and when i ask whats up she says nothing...another time i went up to her and her friend and said sup....she started to giggle after i said it to her friend...do you guys think she likes me? (plz answer with a maybe, yes she does, no she doesnt or something like those).