I need to know if this girl likes me, does she?

There is this girl at school who dated my best friend and makes funny jokes. I like her… I wonder if she likes me. At school, she looks at me, but I think it was probably because I look hideous. She always talks to my friends whenever I am nearby, which makes me extremely nervous. She is the only girl I’ve ever liked. We sometimes stare at each other, but only because I think she catches me looking at her. My friend told him she likes me on, but does it sound like she does?