The clips of Aaron Jusge looking into the dugout right before he homered last night sure are interesting.
As pointed out in the Twitter comments - that would be the Toronto dugout. If they're dumb enough to be doing something that lets him know what pitch is coming, that's on them.
Now, it might be that he's looking at the 1B coach or on-deck hitter, who in turn could be getting something from the Yankee dugout. I'll grant that he seems to be looking at *something* while trying not to be obviously looking at it. Was there a woman in a low-cut top over that way?