1.   And if what Cadfael suspected was indeed true, he had now good reason to be on his best behaviour.

2.   But everyone is on their best behaviour.

3.   Dinner was very formal, with everyone on their best behaviour.

4.   She had to stay on her best behaviour and dance to his tune.

5.   Use only our own girls and warn them to be on their best behaviour.

6.   So far they have been on their best behaviour.

7.   The boys were on their best behaviour, and everything went off very nicely.

8.   When you are online, you must be at your best behaviour.

9.   What irks city dwellers that they forget their best behaviour when they leave home?

10.   Fun-loving Bangkok residents have been ordered to be on their best behaviour during the traditionally riotous water festival of Songkran, officials said Wednesday.