Behave well in a social situation or when being observed: warn them to be on their best behaviour
More example sentences
- Barney said: ‘They really deserved to win and were on their best behaviour.’
- But if some of the former residents were lacking in self control the children greeting the Princess were on their best behaviour.
- Well done to all the pupils who were on their best behaviour on the night.
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.