"Irritation will be sufficient." She may be keeping that neutral, 'innocent' tone, but a suspicious mind might think she's sneakily amusing herself at his expense. Arid considers him for a moment before nodding. "That affect is appropriate. Please continue."

She's not just expecting him to do all the work of playing bait, though. Hence the direction she's leading them in. "We will seek out humans expressing excessive fear as an alternative. Any form of human distress or displeasure should compel a service bot to respond if it is in range."