It's straightforward enough, Prompto. [It isn't so much criticism, not really. V isn't so arrogant that he would deride someone who shows a sincere interest in a recited poem. Instead, he eases into explanation.] The meaning is in the title, "Infant Joy". The joy of a new life coming into being, and how the outside world might also impress joy upon it.

[There's a subtle sort of enthusiasm that V exudes when he speaks about poetry, hard to pin down. The way his mouth upticks into a different kind of smile, or a different kind of light behind his eyes. Yet V is still all casual demeanor when he leans back in his chair again, though his hand still grips idly at his cane.]

I told you I've been a fan for a while. When I was... younger, I used to read often. Especially poetry.

[It's technically true, at least, if one stretches the truth just a little. But Prompto doesn't have to know that.]