Jack curiously glances around, nosying in on what other people are doing. Quickly, he gets bored, turning around to come face to face with you... he raises an eyebrow.

"Hm? ..."

He looks you up and down. Then raises an eyebrow.

"Do a know you?"

He's being sincere. He has no idea who in the seven seas yee'd be, but if yer standing that close, and looking at him, then he clearly should know who you are.