Not Paying Attention

a state in which one is very deep in thought and not aware of one's surroundings

During the lecture, I found myself in a brown study, thinking about unrelated matters instead of paying attention.

to examine a thing or person very quickly

Can you give my paper a once-over?Just see if you spot any typos.

said to mean that what a person is searching for is right where they are, but they have failed to notice it

Come on, your watch is right here, Liz!If it was a snake, it would've bit you!

used to tell someone that the zipper of their pants is open

At the Fourth of July barbecue, my uncle used 'XYZ' as a discreet way to let me know my zipper was down, saving me from any embarrassment.

used to say that a person is thinking about things that are unrealistic or impractical

John is a dreamer with his head in the clouds.He's always coming up with creative ideas, but he struggles with following through on them.

not paying attention or not doing one's job properly, often resulting in mistakes or negative consequences

Let's hope the regulators are not asleep at the wheel.