Comedian and talk show host Jimmy Kimmel, who is white, visits an African American barber shop to talk about handshakes and race. The piece suggests that norms we use to greet others vary by race. I wonder what consequences such differences might have for casual interaction across racial boundaries.

Later, Jamie Foxx appears on Kimmel’s show and they continue on the same topic.

If such differences are widespread, to what extent might it help to be more open and up front about their existence and possible consequences?