"Not a person, aye? I think I'm a person. I am an individual, I am humanoid. That's enough for me." He was messing with her. Enjoying it far too much. But vagueness should be rewarded with such. Even her far more specific question of what he was. Perhaps he'd skirt around the issue a bit more, give her something to think on and see what sort of wild conclusions she would come to.
Wasn't often he found entertainment on a sober mind, might as well take full advantage of it while he could.
"I'm a man, lass. An Irishman of the blood and in this day and age, as fucken Irish as you can get. No black Irish, not tainted with the blood of the English or the Scots. A man of the mound, one of the good folk, part of the Tuatha Dé Danann... and most of what you think you know about my kind is utter bullshit."
She was young and foolish, probably wouldn't believe the truth if he told it bluntly.