How to politely urge people to do things

When urging someone to do something, you can’t just call him or go straight to his office to ask what happened? Because the relationship between you and the other party does not allow you to do this yet. If the relationship is good, then you can be more direct. If the relationship is average, try not to use phone calls or text messages. Because these methods have the meaning of "requiring others to respond immediately", which can easily give the other party a feeling of being abrupt or even offensive. I suggest that it is best to communicate via email, because email gives the other party buffer space and processing time, making it more polite and appropriate.

Tell the other person frankly: In fact, I don’t have much time left. Why don’t you make an appointment with me as soon as possible, or just tell me no. Provide some fresh and useful information to the other party, and remind the other party tactfully: Don’t forget what I want to do with you.