Act one's age (6)
I believe the answer is:
behave
(Other definitions for behave that I've seen before include "Act in a certain way" , "Act in a certain manner" , "Act properly" , "Stop acting up!" , "Act or react - show good manners" .)
I believe the answer is:
behave
(Other definitions for behave that I've seen before include "Act in a certain way" , "Act in a certain manner" , "Act properly" , "Stop acting up!" , "Act or react - show good manners" .)