Likes you more often than others, the touches and longer and lingering. Uses any excuse to touch your hair. Insists that you hold hands in public my bisexual friend does this all tits covered in cum time even though we established there is signs attraction between us.
Friend you to sleeping at her place.
7 clues to help you know if she’s into you
Dresses in the clothes that you like and asks you on the opinion of how she looks. However, this could all be just coincidental, maybe she just feels very comfortable around you. The best thing you can do is ask.
Express your desire you not become something else than just friends. Honesty is the key here. Me and my bisexual friend did that and it made us closer even though we both lesbian rejected each other.