Are there any kids that don't love hide and seek? That was always awesome. As a kid I had an amazing imagination and by myself or with my bro/another friend or two we had endless adventures (especially in my backyard that was like a small forest). But I also played soccer as a kid from like age 5-17, including indoor and I did reffing, so I enjoyed that a lot while it lasted.
Hide and seek definitely! I did the normal american kid sports, I did soccer for years, and T-ball (never liked it though, got in trouble for collecting cool rocks from the ground instead of paying attention).