How to get this girl?

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a girl showed me signs that she liked me, she look at me once smiling, she even took a pic of me and would glance at me was I was near occasionally but i never returned them, i was too scarednext after weeks of this I got the vibe that she was mad/sad (?), she didnt look at me but I knew for sure she knew when i was around. Then last week I grew a pair and smiled at her and she looked at me then away back at me then away(to see if i was really looking at her or?), then she looked down smiling as she passed me, thats what i remember, i dont what else she could be smiling about beside me smiling at her. So thats a good sign, though ive never talked to her...advice? Could she like me still? obviously talking is the next step once i get back from a week long break but how should i break the ice since i feel itd be awkward me just saying whats up all of the sudden