This version of 2 vs 2 is played on a quarter ice station using regular nets. This station allows you to use goalies if they are available. This type of 2 vs 2 is great for this size of station. It allows each player to be fully engaged at all times. With only two players it is still mostly 1 on 1 play but some of the advanced players have opportunities to make plays. Each shift should be 60 - 90 seconds then blow the whistle and throw out a new puck for the next group of players.
For the most part just let them play and try not to get too involved except for managing the shift changes. Compliment them on good plays but stay away from correcting them.
Credit: Diagram produced using Hockey Coach Vision.