Jack would have been idly smiling about the errand boy remarks, zoning out when he would have noticed Violet suddenly. His face would go a bit red and he would smile a bit sheepishly. Girls always did make him nervous, so would Jinx had he not been so rushed.
"Uh, yeah, it's... Um, nice to meet you, Violet. You don't have to call me Vector, Jack works fine too." He would say quickly, with a little nervousness. "Unless you prefer Vector that is? Do you prefer Sha-" he would be cut off by her being knocked forward at him. Jack would catch her quickly and set her straight, watching her whirl around to the others. She is a bit fiesty, it seems.

Vector would quickly dart next to her with his hands raised at shoulder height, peacefully. "Woah, guys, let's just be friendly, yeah? No need to go staggering and swaggering about, knocking heads before we even start... Right?" Speaking to Violet out of the corner of his mouth, Vector would quickly ask, "Do you prefer Violet or Shadow?"