Looking up in recognition of being spoken to he gives a nod "I was told about the effects on one's alertness. It's an unusual tea, but should be fine in moderation."

The Wolf tilts his head at her gesture. "My apologies Jill, I'm unfamiliar with that gesture." Japan wasn't a nation that had developed the hand-shake as a greeting and the only foreigner he had met was one he had to fight.

So he was genuinely confused, but amicable to understanding.