This is when you act like a kid even
if you are not. You may be old yet doing an activity that
children do. It may involve
doing something that
is not intellectually
challenging as far as age goes. For example colouring in or playing
easy computer games designed for a 5 year old. You may enjoy these
activities regardless of age.
Basically it means doing activities
set for young children
that are fun
, but you are too old to do.