To the above, I'd add:
getting away from and landing at a dock or float, if one's available;
rigging, launching from a beach, and landing again, since Sunfish are typically beach-launched;
Dare I say it? Intentional capsize and recovery (or unintentional works even better) since that can happen, too.
Upwind sailing in a breeze is a challenge in these boats. They have to be close-reached to get up speed after a tack before you can jam them up to close-hauled. And it's easy to pinch too much and stall out, hard to get going again, you have to reach off briefly, then head back up. So practice it if you can.
And have fun! That's the whole point, while learning.