first shot: during the fight scene at the festival, there's a cop calling for backup on his radio. in the top left corner of the screen, you'll see the back of a guy's head in a dark gray fleece jacket. that's me.
second shot: when the goblin is fighting the cops, right after he's thrown the last cop, you'll see me run across in black slacks and the same gray fleece jacket. there is a clear shot of my face. the shot directly follows a blurred shot of spiderman running to attack the goblin.
note: both appearances go by quick. you can see me at normal speed, but it'll take a couple times if you don't know what i look like.