be on your best behaviour
US /bi ɑn yʊər bɛst bɪˈheɪvjər/
UK /bi ɑn yʊər bɛst bɪˈheɪvjər/
1.
berkelakuan baik, bertingkah laku sopan
to act in the most polite and proper way possible, especially in a situation where you want to make a good impression
:
•
When you meet my parents, I expect you to be on your best behaviour.
Apabila anda bertemu ibu bapa saya, saya mengharapkan anda berkelakuan baik.
•
The children were told to be on their best behaviour during the school trip.
Kanak-kanak diberitahu untuk berkelakuan baik semasa lawatan sekolah.