Do you act mean?
Tease non stop?
Always glance at her or watch her from afar?
Look back at her either
- because you're leaving the room and want to see her one last time or you go
- make a tease remark or joke as you're walking away and then suddenly look back w a smile to see her reaction?
Do you have other examples? How can you tell that they're just friendly vs. Actually liking you but won't act on it?