[Oh, crap. Now he looks like a dick (as if he never has before). He clears his throat and tries to force the look of surprise off his face, but that only results in an awkward-looking smile.]

P-pardon me, mademoiselle. I really should be more used to sights like this after being here for so long... ["So long" being about three months.] You have just caught me off-guard, that is all.