I was at my friend's bday dinner last night. This group are predominantly white. One of them had an asian girlfriend there and when we all took pics, she flashed up the cutsie peace sign. Why? I'm going to make a thumbs up a thing when taking pics.
It has its own Wikipedia sub-entry: http://en.wikipedia.org/wiki/V_sign#As_a_photography_pose
"In Japan", "In other East Asian countries", and "Elsewhere".
I'll even corroborate that many will actually say "Yeah!" while flashing the sign, except it comes out more as "Ye~"/"椰~".
V for victory.