Nico was laying in the grass of Half Blood Hill, reading from a 'space dictionary' whilst stargazing, looking down at the book every few seconds to try and identify something.
He just so happened to look up, and he saw you, probably healing some people from the previous capture the flag game....that game never comes out pretty. After staring for a sec, he tilted his head in wonder, still looking slightly confused. 'do i know him..?' he wondered, searching the back of his own head for any memories.
suddenly, he remembered that kid saving him from a mud slide that one time, his eyes widened into relief and wonder.. 'does he still remember me? or maybe even thinks about me?'
he watched you work in the grass, healing wounds left and right.
"hmm.." he mumbles to himself and lays back down, glancing up at the sky "sweet kid."