Grammar JLPT Level N4 - Lesson 21

お～ください is an honorific language expression in Japanese which is used in a similar way to なさい. It is the imperative form of くださる, which itself is the honorific language equivalent of くれる. In this way, it conveys 'please do (A) for me'.

• こちらのサービスを使(つか)うにはインターネットでお申込(もうしこ)みください。
  To use this service, please register via the internet.
• こちらのスリッパをお使(つか)いください。
  Please use these slippers over here.

お～ください is more polite than なさい, and may be used when making requests to almost anybody, regardless of if they are higher, or lower status than you).

• 後(うし)ろの扉(とびら)をお閉(し)めください。
  Please close the door behind you.
• どうぞ、こちらにお掛(か)けください。
  Go ahead, please sit right here.