If you are already out to those closest to you, go for it. I know, comin' and goin' with more than one account.
If that's the case then I would probably do it. If they are just casual aquaintances, what can they do to you. They may treat it as a joke, they may laugh, have negative things to say to or about you or may unfriend you. But if they're just aquaintances, no harm done really. Just think of how many new friends will come along. I know, kinda' Annieish with The Sun'll Come Out Tomorrow or at least that is what's popping into my head rereading what I wrote. If you do let me know how it goes for you.