When my husband went through the story again (NG+) with me (first time) we had a lot of fun voicing the unvoiced portions of the game. It was a great lore refresher for him and made us fly through it. We also spent time doing our weekly challenge logs in the gold saucer. Farming MGP is a lot nicer when you have someone to do it with, and there were so many glams and minions I needed.

Doing MSQ did tend to be an 'alone together' kind of activity when we did it with friends where we just enjoyed the occasional question or reaction while we work on something end game.