"Nineteen or twenty."
"Did you ask him to dinner at Kettner's?"
"I think I met him at a dinner at Kettner's."
"Was Taylor at the dinner?"
"He may have been."
"Did you meet him afterwards?"
"I did."
"Did you call him 'Fred' and let him call you 'Oscar'?"
"Yes."
"Did you go to Paris with him?"