system
excited: I get to go whitewater rafting this weekend. I used to go all the time when I was younger but haven't been in many years! I hope it's a lot of fun.
human
I got invited on a whitewater rafting trip this weekend. I haven't been in so long, I'm running circles out of excitement.
gpt
whitewater rafting seems like alot of fun. 
human
It can be exciting as heck. Sometimes a little dangerous too but that's half the fun!
gpt
fun and dangerous my type of fun. glad you had fun