watch one's dust
watch one's smoke
To notice your quick action; watch you do something quickly.
Offer Bill a dollar to shovel your sidewalk, and watch his smoke!
"We'll have your yard cleaned in a jiffy," the Boy Scouts told Mr. Truitt. "Watch our smoke!"
"I can go to the store and be back in five minutes," bragged Tom. "Just watch my dust."
watch one's language
To be careful of how one speaks; avoid saying impolite or vulgar things.
"You boys watch your language," Mother said, "or you won't be watching television for a whole week!"
watch one's step
To mend one's ways; exercise prudence, tact, and care.
Улучшать чье-либо поведение, образ действий; действовать осторожно, тактично.
I have to watch my step with the new boss as he is a very proud and sensitive individual.
There is zero tolerance in this school for bad behavior so watch your step!
Эта школа совершенно нетерпима к шалостям, поэтому будь острожен!
watch over
To guard; take care of.
The museum guards carefully watch over the world-famous paintings.
watched pot never boils
If you watch or wait for something to get done or to happen, it seems to take forever. A proverb.
Jane was nine months pregnant and Tom hovered over her anxiously. She said, "You might as well go away and play some golf. A watched pot never boils, you know!"