strut your stuff
strut (one's) stuff
To act or perform with brazen, ostentatious confidence. I swear these dogs know they're being judged—look how they strut their stuff! After a year of training, he went up onto the stage to strut his stuff.
strut your stuffINFORMAL
COMMON If you strut your stuff, you do something which you know you are good at in a proud and confident way in order to impress other people. He was the type of guy who liked to show off and strut his stuff. This weekend, in parades across the nation, Irish Americans are strutting their stuff.
strut your stuffdance or behave in a lively, confident way. informal
1998 Country Life London is a place to hide in, to get lost in; New York is a stage on which to strut your stuff.