make yourself useful
US /meɪk jərˈsɛlf ˈjuːsfəl/
UK /meɪk jərˈsɛlf ˈjuːsfəl/
1.
to do something helpful or productive
:
•
Instead of just standing there, why don't you make yourself useful and help with the dishes?
•
The manager told the new intern to make himself useful by organizing the files.