Jean-Paul returned Dante's greeting, giving a wave of his own before he made himself comfortable. Even his expression was laid-back with just a subtle grin that was reserved for Warren. Oh, yes, he remembered that party and how it changed his view of Warren a little, giving him so hope in that area. Or maybe it'd just created a challenge that he was more than willing to take. As Tabby appeared, Jean-Paul gave her a little wink and sat up as the introductions went around.
Leaning forward with his elbows propping him up against his knees, his face scrunched up in concentration. The explanation wasn't the part Jean-Paul was here for, especially since most of it was gibberish. He wasn't a computer - or really much of a tech - savvy person. As the monitor flashed with rows of numbers, he gave Warren a confused look that said something along the lines of, Who the hell could understand that? At least it was useful to him and finally the conversation got around to something he could actually help with.
He stood up but remained a little bit toward the back, his eyes following Warren's to Dante as he realized he didn't know what his powers were either. Thus, he was quite excited to see what the new mutant could do.