At first, things progress more or less as expected. Phalanx watches with detached discomfort--hovering around this point of interest, but not really anchored to anything otherwise.

And then, several seconds in, they suddenly notice Robin hooking the pins into his own sleeve. Distracted from the needle-wounds in an instant, Phalanx's eyes flick over and fixate on this new focal point much more quickly than they usually tend to.