I call it reminiscing

A young lady was describing to her grandfather her experience at the theater the preceding evening.

"Why, I was really shocked," the young girl said. "Everybody in the place was making out."

"Making out? What in the world is that?" her grandpa asked.

"It's the same thing you called necking, Grandpa."

"Maybe so," Grandpa replied. "But now I call it reminiscing."