lets see you gets the best reaction from a stranger
Get/give a hug to a stranger, and don't let go. Hold on for as long as you can. They have to struggle their way out of it.
Try to get a stranger to pee in a cup for you. Whey ask why DO NOT SAY IT IS FOR A DRUG TEST. Say your a collector.
Sounds simple? It actually is! Go out, find a stranger and get slapped. Highest Streetcred video gets a Heavy T-Shirt.