How do I (17M) introduce myself to someone who kind of already knows me?

Sorry for the confusing title...There's this beautiful girl that lives in the same town as me. Her -and my parents know each since like 2 months and both of our families occasionally meet, so that's when I usually see her. I've never spoken to her because I'm quite shy and she seems even more shy. I want to try to talk to her but I've no idea if it's weird if I call her by her name as she never personally told me her name -- I just know her name because I heard it in conversations between her and my parents. So should I just pretend like I still don't know her name (after 2 months) or should I just call her by her name? And should I assume that she even knows my name or should I introduce myself? -- it seems just seems so weird to introduce myself after 2 months of (kind of) already knowing each other. I know this is a silly post but I don't want to mess this up xD