[He notices the Vision's glow. Notices a few other things, too, in the short amount of time between Childe appearing in front of him and his attention falling to the offered towel and clothes. The timbre and pitch of his voice, the way he holds himself as he stands there, what he's wearing and how, the accent - however faint - that tells him of the other young man's country of origin.

Heizou smiles blithely, easily, holding out a hand for the towel.]

That's terribly good of you, old chap. Thank you. [There's no embarrassment about him as he stands up and dries off, and he pulls the clothes on without so much as an upwards glance. Then, ruffling the towel over his sticky-damp hair, he finally looks up to meet his would-be saviour's eyes.]

Don't suppose you can clue me in on just what's going on here, can you?