Improv Everywhere is a group of New York based undercover improv agents who organize and execute missions to "cause scenes of chaos and joy in public places". Their missions are all pretty funny and involve some sort of over the top kind gestures. Their latest mission called Welcome Back brought a huge smile to my face. The mission involved 20 "agents" to camp out at JFK airport for the day to welcome strangers. They found a driver in the airport carrying a sign with someones name on it. Then they would fill out all of their welcome home signs accordingly. When that person came to meet their driver they were also met by 20 strangers screaming their name, carrying balloons and flowers. Watch a video of the event here. This is such a brilliant idea.