Idk what to think

Ok so I’m a senior in Highschool and me and this girl ALWAYS and I mean ALWAYS make eye contact if we’re let’s say walking past eachother, in eachother field of vision, literally anytime we’re near eachother. She never smiles and I never smile but idk if it’s attraction or if she’s weirded out by me. But yeah just wanted some advice because idk what to think. Also before I forget this one time me and my friend were walking behind her and her friend and she briefly like glanced back at me in the way she was not trying to give it away she was looking at me. But yeah with all this info someone please tell me what this means and what to do about it