look on the bright side of it

bright and early

(Very) early in the morning.

bright lights

The glamour and glitz of a place, especially a big city.

bright line

A clear distinction in the context of a legal, moral, ethical, or analytical judgment.

bright side

A consoling aspect of a difficult situation.

bright spark

A person who is intelligent, clever or quick-witted.

bright young thing

One who is youthful, clever, eager, and high-spirited in manner and attractive in appearance.

Butcher's

[Cockney slang]look

via butcher's hook

dirty look

An unpleasant or disdainful look or expression, often directed at someone.