not showing serious or careful thought or real understanding

to behave in a way that makes people believe that you have a particular characteristic

having strong feelings of disagreement with people in authority, they are difficult to control and do not behave in the way that is expected

to do what other people are doing or to agree with other people because it is the easiest thing to do:

a sweatshirt (= cotton clothing for the upper body) that has a hood to cover the head

sb who is practical, reasonable, and direct in dealing with people

modern and influenced by the most recent fashions or ideas

the way a person or thing looks to other people

too interested in your own appearance or achievements

to put on formal clothes for a special occasion

Displaying a relaxed confidence in and clear understanding of oneself and one's abilities, especially when presenting oneself to or interacting with other people.

having no problems or not being worried about anything