Severus is not a social man by any stretch. Generally when he goes out, it's with the confidence (or hope) that he won't run into anyone he actually knows - going out means simply that, leaving the damn house, and he tends to want to be just as unbothered out in the world as in his home.

Such is the case this evening, sitting at an out of the way outdoor table in the cool weather, accompanied by a teapot, ash tray, and empty plate of something finished earlier. He'd been reading but it's too dim for that now, and is instead finishing a cigarette (or working on a pack, who knows) while observing a luminous star moth flit around on the pavement; it's the size of an adult's hand, flicking back and forth and leaving glowing stardust, enchanting the other patrons.

(They'd probably be upset if he nicked it for a potion. Life is hard.)