Questions: Girl's Behavior

I’ll just make a list:

* Smiles and waves first whenever she sees you and looks down
* Looks at you from afar but often I just catch her looking away or sits somewhere she can see you
* Chatty and bubbly and asking questions one day and quiet and not very ‘into the conversation’ the next? Like short answers, quiet etc. Also fiddling with stuff like a phone but not actually using it. Just tapping some buttons quickly and putting it down. This was when she was quiet.
* Sometimes only does a slight smile, rather than full-on belly laughing, when telling a joke or saying something in a humorous way
* Shows you photos of stuff on their phone
* Plays with hair and then turns and looks right at you (knew I was in the room beforehand)
* Tells you about some of their likes and dislikes (music, favourite weather, pets, future plans)
* Open body language - feet pointing towards me, arms aren’t folded but by her sides, sits straight
* More confident when with friends
* When talking, makes eye contact for a few seconds and then looks down or to the side whist talking and smiling a bit
* Always facing you (whole body and feet) when talking and standing

Bonus one:
* Tried to talk to me first many times in the past (but I didn’t pay much notice at the time as I was occupied with so much stuff at the time) A few of those past interactions she was fine talking and others she was quiet.

^ This above one makes me think she’s liked me for a while and usually, I’d imagine a introverted girl or a shy girl wouldn’t try to get a guys attention anymore than twice before giving up. She’s tried like… 6 times since October last year.

FYI - I’ve already gotten past the approach barrier and we’ve spoken a few times recently for about 25 minutes each time.

Any input is welcome and thank you in advance girls and guys!