We didn't do too much planning. Only that we planned to have one person do all their lines first, and then the other, instead of going back and forth.
I'm not sure that we followed the rule of thirds correctly. In both shots, the person who is talking is in the middle of the screen.
Over the shoulder shots create the sense of a conversation between two people. It is somewhat more personal than just filming the conversation as if from the viewpoint of a random passer by.
The dialouge seems realistic, but you can tell that it was being acted out. One thing we forgot to think about was how we were going to plan the reaction shot. We shot the dialouge at a seperate time than the reaction that was supposed to go with it. This was a mistake because it was difficult to make the reaction shot look real because the sound was off.
There really isn't a dominant mood or tone, it's kind of monotone.
Over the shoulder shots are very effective and they help change things up when you need a new kind of shot to use.
I realized that when there needs to be acting in a video, the actors really need to try their best at making the dialouge real, or else the video can come across boring and bland.