His mind stays stubbornly blank for an amount of time he is altogether not keen on. Eventually he kicks himself hard enough that one unhelpful thought sprints to make itself known.

Oh, no.

Very unhelpful, but it does open the floodgates for a deluge of others, recalled pieces of information inked on pages, dots he now connects...

Lemm knows exactly who this is, and he is absolutely certain they should not be here.

The slow, unsettling motion is enough to give him half a heart attack. They're looking at him. He thinks. Anyway, he can't stand here in silence forever. Something should probably be done, or said. He should at least acknowledge them. After everything they've done, been made to do -

...The Knight doesn't like formalities much. Would probably be mortified, if they were here. Lemm abandons the thought of bowing, and hastily tries to come up with something more neutral.

In the end, the vessel is paid a polite bow of the head, a reasonable compromise by his reckoning. Lemm would afford that to few to begin with. He would afford the Hollow Knight quite a bit more than nothing at all.

Lemm's hand loosens around the umbrella to let it slip to its handle, and rests it point-down against the paving stones with a soft, wet tap. His heart has virtually leapt into his mouth, but he isn't about to let on. With a measured tone, he opts to be straightforward.

"Alright out here in the rain, are you?"