That is actually an excellent idea, especially considering that Levi can not swim so wading into the ocean is far from a good time for him. So he's just going to nod, though he'll still help in pushing the raft the rest of the way to the water (he had left it some meters off the wet patch of sand, just to be safe).

"No," he agrees, and considers leaving it at that. But Martin is helping him get Maddy, and he doesn't look like anybody from their world, so it's... probably fine. So after a bit of a pause he adds, "It's Levi."

The others had been respecting his wishes to keep his name and its relation to his callsign a (relative) secret, so he can only hope Martin will be, too.

"...I'd prefer you don't mention it to people I have not met face to face."

Somehow, it sounds a little more like a threat than a request, but maybe it's just his inflectionless tone sounding unnerving. He still doesn't trust the radio people, mostly because there's no way of knowing who is actually who.