Turn on your Mac, then immediately press and hold the D key on your keyboard. Keep holding until you see a screen asking you to choose your language. When Apple Diagnostics knows your language, it displays a progress bar indicating that it's checking your Mac: Checking your Mac takes 2 or 3 minutes. If any issues are found, Apple Diagnostics suggests solutions and provides reference codes. Note the reference codes before continuing. Choose from these options: To repeat the test, click âRun the test againâ or press Command (â)-R.
Freebase(0.00 / 0 votes)Rate this definition: Peer pressure. Peer pressure is influence that a peer group, observers or individual exerts that encourages others to change their attitudes, values, or behaviors to conform to group norms.
Grace under pressure refers to the behaviour of a person who is under a lot of pressure. Say you're working as the boss of a team and you've got a deadline to meet, grace un â¦ der pressure means you don't stomp around the office yelling at people, pulling your hair out, sweating and generally going crazy.It means you retain a calm outward appearance and remain polite when dealing with people.ay you're working as the boss of a team and you've got a deadline to meet, grace un â¦ der pressure means you don't stomp around the office yelling at people, pulling your hair out, sweating and generally going crazy.