We haven't spoken to each other for over a month. I thought she moved on, but recently she started to like my Facebook posts (nothing emotional - just about random incidents that happen to me that I found funny). Also it was her birthday the other day, so I texted her hbday and such to which she replied "Thank you!".
I don't know if she's hinting anything or anything. Obviously it's hard to say unless I ask her. I'd like to get back with her if possible, but I don't want to do anything dumb. What can I do? What might she be thinking?