Everyone on the Internet is posting "hadouken" pictures and you can too. It's a trend that's already HUGE in Japan.
Basically, one person pretends like he or she is in Street Fighter and poses as if ready to shoot lightning at everyone else in the photo. As the photo is taken, everyone else has to jump back like they've been hit with said lightning ball in order for it to work.
If our calculations are correct, the local news networks will be showing you their hadouken photos some time around the end of next week. [h/t EVERYWHERE]