Well the question isn't clear, but if you are childish and not being serious and responsible, then you need to straighten out.
have a nice long talk
Try to tell them when they are being rude so they will stop. Being childish isn't always a bad thing.
The state or quality of being childish; simplicity; harmlessness; weakness of intellect.
no you won't be clever if you are childish.
I have to admit that I can get very childish about signs sometimes. my brother is very childish.
a person who is not mature and is childlike
Childish is puerilis or infans
this is childish = das is kindisch
yo mama haahahah grow up stop being childish
Being teased, made fun of, humiliated, or in some cases even physically abused not in a drastic way but in a childish way.
Dont be childish?
The duration of Childish Games is 1.37 hours.