She’s clearly having fun, running around in circles, chewing sticks, and finding and eating cat poop. And I don’t want to discourage her from having fun when I take her outside (except for the cat poop thing – that needs to stop).
But she seems to have the idea that jumping up and biting my wrists or my ankles is a fun game that we both enjoy, and she seems to be getting more agressive about it.
Have plenty of toys around so when she starts to get bitey you can redirect it towards a toy which will help because she’ll learn “oh cool I can chew/bite this”. Also work on teaching her the word No or off/down. Really should be high on the priority list of commands to teach. You can also try wincing in pain like a dog would and that will sometimes indicate that they’re playing too rough and will stop, but that doesn’t always work. In fact with my dog it hardly worked when he was a puppy.