practise what (you) preach

British & Australian, American

to do what you advise other people to do.

I would have more respect for him if he practised what he preaches.

• cost someone a pretty penny
• cost someone dear
• cotton-picking
• cotton to
• cotton to someone
• cotton to something
• couch potato
• cough up
• cough up something
• could do something in sleep
• could do something in their sleep
• could do something standing on head
• could do something standing on your head
• could do something with eyes closed
• could do something with eyes shut
• could do something with one arm tied behind back
• could do something with one arm tied behind their back
• could do something with one hand tied behind back
• could do something with one hand tied behind their back
• could do something with their eyes closed
• could do something with their eyes shut
• could do with
• could do with one arm tied behind back
• could do with one arm tied behind their back
• could do with one hand tied behind back