How do I start talking to her?

So iam a Med School Student. She is also in Med School but in a different department (BDS). I recently got migrated to another med school and now i really want to talk to her. I mean i never cared before but now i want to know her better , to talk to her, we never talked before and she probably doesn't even know me. She has 0 posts on Instagram. What should i do'? Approach her through her friend maybe or would that be weird?
How do I start talking to her?
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