gaze at/contemplate (your) navel - to spend too much time thinking about yourself and your own problems.

He's a man of action and navel-gazing has never been his style.

• rat race
• an ego trip
• an embarrassment of riches
• an end in itself
• an enfant terrible
• An Englishman's home is his castle.
• a nest egg
• a never-never land
• a new ballgame
• a new broom
• a new lease on life
• a New Man
• An eye for an eye.
• An eye for an eye and a tooth for a tooth.
• an eye-opener
• angle for
• angle for something
• an ice-breaker
• a nice little earner
• a night on the razzle
• a night on the tiles
• a night on the town
• a night out on the razzle
• a night out on the tiles
• a night out on the town