[Jason just barely holds back his startled reaction when he looks at Terry. Jason already knew that this Batman's abilities are different from Bruce's because of the suit but hadn't anticipated high-tech camouflage. Admittingly, it makes sense to have that when one is a largely nocturnal vigilante.

Terry's presence also reinforces Jason's indignation and further puts him on guard. One BatFamily member dropping in is already a problem to his safehouse plans]

Don't worry. I already had mine. Nice of you to drop in too. Is this supposed to be a party?

[Jason's still using a dry, sarcastic tone and his hands aren't near his guns yet but now he's thinking how quickly does he need to make his exit now]