Look into the eyes of strangers and determine if we like what we see.

CNN: A 'lucky to be alive' passenger's story

In a culture as stiff as Finland's, this ritual bears a great value and it also makes the culture more interesting in the eyes of strangers.

BBC: Finland's passion for crazy contests

In restaurants, strangers seeing each other's eyes instinctively say "buen provecho" before eating.

CNN: Travel expert: Why you should go to Mexico

"We are strangers in the federal government's eyes, " Mr. Hopkins said.

WSJ: Widow Edith Windsor Gets Her Day in Court as Justices Weigh Gay Marriage