Either way, canon or au, I think it’s gonna be a food date. They both love to eat, and I think it’s clear how important it is to Minho to see people eat well. I think they might not even realise it’s date, until Jeongin asks for clarification curiously, a little sauce on his lip. Minho clears his throat, blinks. Says, of course it is. Is hyung not romancing you enough? And Jeongin will smile and say just checking, hyung. Their everyday romance is subtle and I think a first date would be a barely perceptible step forward. They’ll hold hands on the way back :)