I think I was a silly kid.

我认为我是一个傻孩子。

youdao

He's like a little kid with his silly jokes.

发这种傻笑话真像个小孩。

youdao

And he asked me why I did it, and I was just being a silly kid.

NPR: Black And Blue: Police And Minorities

Add to that the fact that Halloween has undergone a shift from a sort of silly, kid- and candy-centric affair to a full-blown event for adults.

FORBES: Halloween Spending: Be Afraid, Be Very Afraid

Call me silly, but I think a kid should be able to dream about becoming an NFL star playing in the Super Bowl -- a safe Super Bowl.

CNN: Make football safe for our kids