He's so curious about the human in the floating rubber donut. You're wearing too little clothing. Aren't you cold, floating like that in the ocean? You dip your arms and legs deeper into the water, wiggling them around. He stares at them in fascination. You have no webbing, and your fingers are as flexible and squirmy as eels. He gathers a big armful of seaweed, and then surfaces to say hello to you.
His greeting is a shrill, clicking shriek. You shriek back, and he grins, unaware that the sound you're making is one of shock, not a friendly greeting. From your point of view, you were just floating around in the shallows enjoying the clear sky and the salty spray of the ocean when a thing emerged out of the water and screamed at you.
It looks somewhat human, but humans don't have finned ears, or slitted eyes, gills, or striped skin. The creature proceeds to dump a pile of seaweed in your lap, cheerfully rasping out something that sounds like "warm!" and all you can do is utter a confused "thank you?"
