Phalanx is never exactly confident in the conversation department, but they usually aren't all that cognizant of this fact either. There are usually more than enough things going on to mull over and be distracted by that their attention is on anything except the words coming out of their own mouth.

But, they're also rarely trapped one-on-one in a situation where conversation is so expected, and almost never with someone who is so sound-oriented. All at once, the poor creature is severely aware that they really should say something here, and it needs to make sense. On whatever unconventional level that Phalanx processes their surroundings, the fact that Vincent is ears-only hasn't been overlooked.

"...We're not used to it either."

And that's the best that they come up with.