お～くださいPlease do (Honorific)

てください is a polite, neutral way to say 'Please do (something),' and is used with strangers or equals. The honorific form, お〜ください, is used for superiors or customers. However, some verbs like 食べる and 行く have special honorific forms, such as 召し上がる and いらっしゃる, which are used instead.

ないでください is a polite way to ask someone not to do something. It's neutral and can be used with strangers or people of equal status. In contrast, お〜ください is an honorific request form used with superiors, customers, or others of higher status. Some verbs, like 食べる and 行く, have special honorific forms such as 召し上がる and いらっしゃる, which are used instead of the お〜ください structure.

Both forms ask someone to do something, but the tone is different. なさい is a polite but direct command, often used by parents or teachers, as in これを使いなさい ('Use this.'). お～ください is a respectful request form, used to politely encourage someone like a customer or superior to do something, as in これをお使いください ('Please use this.').

お～ください and お～願う are both honorific request forms but differ in nuance and setting. お～ください is often used when politely encouraging someone to take an action, such as お上がりください ('Please come in.'). お～願う is more formal and is typically used in public announcements or formal situations. For example, ご注意願います ('Please be careful.') might be used in a train announcement.