Does she often make eye contact with you when you're talking?
Does she initiate conversations or messages with you?
Does she laugh at your jokes, even when they’re not that funny?
Does she seem genuinely interested in your day or personal life?
Does she remember small details you’ve told her?
Does she find ways to spend time with you, even casually?
Does she compliment you on your looks or personality?
Does she touch you lightly during conversation (e.g. arm, shoulder)?
Does she tease you in a playful, non-mean way?
Does she react differently (e.g. quieter or more energetic) when you're around?
Does she respond quickly to your messages?
Has she ever mentioned that she's single or talked about her relationship status?
Does she ask questions that go deeper than small talk?
Does she seem nervous or fidgety around you sometimes?
Do her friends seem to know who you are or tease her about you?