Festus lets out a long grumble as you approach him whilst he's leaned over his Arcane Enchanter, not even bothering to turn to look at you as he speaks in an irritated, sarcastic voice as he always speaks with. The old man is obviously bothered by your unwarranted attention, but he tries to be polite with his words, though his tone is anything but

"What is it now? Come now, speak up."