Solutions

You'll notice how, when walking down the school corridor, you'll sometimes find yourself facing someone going in the opposite direction, and each of you is blocking the other, and when you move to the left, the other person moves to the right, and vice versa, and after you've done this, say, twice, it's almost impossible not to do it, and now you're having far more interaction with this other person than you really want to have, and you're both looking at each other all apologetic and embarrassed. 

 It is an awkward impasse. 

My solution for this is to embrace the situation: If you two are going to keep blocking each other, make a game out of it and actually try and block the other person. Feint, dart, try and anticipate his every move just by watching his eyes, and for every time you block him, you get a point. And if he does manage to slip by, well, then, your awkward impasse is solved, now, isn't it? 

 It's win-win.