Our little Allie takes awhile to warm up to new situations. She's been this way since she was born. When we arrived at Urban Air, she stood still on a trampoline for about 20 minutes just watching the other kids before she decided to "jump in". Once she started, she didn't stop!
At one point, I walked her over to our little picnic table to get a quick cracker and a drink. I looked down, and she was jumping on the concrete floor while drinking her water! It's no wonder she took a 3-hour nap when we got home.