I remember seeing Skalski talking to other team a few times especially in second half (and I have no problem with that)
But I saw something I didn't catch the first time, 2:43 left in 3rd quarter, Book scrambles out of bounds and looks like Trenton Simpson hits Book, they show another angle and ND #20 is all in Simpsons face while Simpson tries to get up. This is when Skalski goes and gets back in ND face.
Also how and Trenton Simpson? Playing his best ball of the season when it matters most