There's a wariness that automatically comes when faced with someone from the future. He doesn't know how anyone would react when faced with him and there's the understanding that it doesn't matter that he hasn't done those things yet, they've all still had to live it.

He doesn't offer his own name with her introduction. Instead he asks, "Are you Anakin's little sister?" There's the faintest hesitation before bringing up his grandchild's name given that they share a name and it's almost like talking about himself in the third person.