Day 13 - Describe a game experience that changed how you play.
This is a tough one for me.
That said, I think the game experience that changed how I play happened when my goddaughter, Ellie, started to actually play with the Friday night gaming group when she was 9 years old or so. While she'd been at the gaming table on and off since she was very small, it was when she actually expressed an interest in and started playing with us that my gaming style changed somewhat. More sensitive to the needs of younger players as well as being more...choosy...in terms of the language I use at the table. And with Ellie joining the group, there was a shift in gender majority as well, so that provided some useful lessons, too.