i wasn't the type of guy who was adding random girls but one day i decided, why not ?
i added a few and also been on a date with one.
i have experience in real like but i don't have experience in on-line dating, i never sign for a dating web-site.
when i add a girl that i never met before what do you think is better ?
1 just add her without saying anything and hope she add you.
2 add her and also send a message

point two if is done well can give you more chances to be added but you have to write a smart message.what can be a smart message ?
maybe pretend to know the girl and that we met somewhere for a very short amount of time ? and than when she add you you can say "oh sorry i was wrong"

what do you mean ?

just add her, most girls on facebook won't even see the message they just go tot he icon and click not now or approve... also it's kind of try-hard if you put a message with it.... however, as soon as she confirms you should make contact pretty soon or it'll creep her out.