So theres this gilr i've known for a while now and shes now single so i was wondering what method is best to apporach. Either text her ( i have her number but doesnt have mine could come off as creeepy?) facebook her or wait till in person? or does it matter?

When we first met we wud casualy flirt over facebook but it never went any further, probably coz i never let it progress but now that shes single ( as from a month ago, relationhsip was 2 years) i wanna try it with her.