Female, 18

don't skip this one, im looking for an advice. I'm in 1st year college now. I have this one girl from our cla*s, i barely know her. We never talked too, but I always caught her looking at me then she'll started looking away after i caught her. there's this one time, I move seat then i checked for her if she'll check me on my seat, then after a few minutes, she look at my place where i last sitted, but i wasn't there because i move seat after that i thought she'd ignore it but she looked all over the cla*sroom as if she's finding something and when our eyes met, i don't know why, she looked away. i'm a girl too. do you think she's straight?