act your age
 

* 1.conduct yourself properly

2.don't be childish

3.don't be childish

English Related Words* a coon's age

* a dog's age

* a feather in your cap

* a hard act to follow

* a penny for your thoughts

* a run for your money

* a tough act to follow

* act

* act a part

* act against someone's orders

* act as

* act as host

* act contrary to nature

* act declared void

* act firmly