I love the trope where Peter figures out it’s Jonah after he’s jumped bodies just as much as everyone else, but there’s no way Peter was looking into James Wright’s eyes enough to recognize them in someone else.
Of course not, it’s the smugness of his voice. The slightly condescending intonation. The extremely annoying way he chuckles. After all Peter had the misfortune of hearing quite a lot of it. Plus Jonah also probably loves throwing not-so-subtle hints all around.
(Also! Unrelated but my headcannon is that even after years of multiple marriages Peter doesn’t know colour of his eyes. Elias asked for another divorce when he found out…)