It depends on my Fursona! If I was Vant I would probably go out to the forest and mountains by my house and lounge in the tall grass and sun, maybe climb a tree for once. If I was Seir, I would go around scaring all my friends, something I normally wouldn't do, but could easily imagine him doing. Finally, if I was Faetali, I would literally spend all day flying places that I like. The top of the mountain near my house, my cousin's place, a river (just any river) and definitely the park so I could see everyone's shocked, confused and possibly wary expressions.
One thing's for sure, no matter what 'sona I am, I would take a whole bunch of pictures and maybe a couple videos.
Sooo, pretty much all the things I would want to do if I ever get a fursuit