Is Facebook a good way to flirt with women?!

Hey ladies and trolls! So, I'm pretty studly! I'm in high school and I was totally getting ripped today in the weight room. I'm a senior and this sophomore girl kept staring at me and stuff.I would look back and she would look away right quick and then look at me again. I way lyke wtf? But she way grinning an stuff. I think she might have a puppy crush on me or somethin. I'm known as being to aggressive and cocky so I thought that I'd write on her wall on facebook as a better alternative. """Hey, I saw you peeking at me today. Give me yo numba gurl and we'll talk more about this relationship!""" Am I still being to cocky and arrogant? If so, can you please give me an alternative (preferably for facebook, to avoid awkwardness?)