Lots of things make kids happy from being with friends to eating sweets.
And they love playing with toys:))
I think that children are happy when they go out to the park with their family because they can going to trampoline, playing on the swings, etc. In addition, they are really happy when they are invited to a birthday because they can share with their little friends playing, dancing, and eating chocolates.
Another point, Christmas makes them so much happy. They just want to open their gifts to have the “expected gifts”.
In conclusion, there are several thing or facts that make children really happy even the most simple things can make a child lucky.