Girl and her friends keep staring at me?

So this girl knows I like her and all her friends look/stare at me when they see me. She constantly looks at me in class. Also one of her friends tried hitting on me. One time she was talking with her friends outside of school and when they saw me they kept turning quickly to look at me and she was smiling while she was. I also once walked in a class on the first day and her friends started whispering in each others ear and laughing. But I can’t seem to figure out if this is a negative or positive sign. I recently asked her out to dance and said she already had a date but I did ask pretty late.

Girl and her friends keep staring at me?
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