Poodle around

a person, especially an athlete, who performs in an ostentatiously sensational manner calculated to draw attention; show-off.
—verb (used without object)

to perform or behave in an outrageous or spectacular manner.

Showboating

to spend time doing things without any particular purpose or plan:

‘Poodle around’ used in the UK

Girl, Terri has been poodling around d in her new truck.

We spent the day poodling around town.

Poodle around