Question

The act of giving instruction or important information​

Answer 1

The correct answer to this open question is the following.

Here we have a statement, not a question. It seems that you forgot to include the question.

However, in order to help you, we can say the following.

The act of giving instruction or important information​ can be understood as an order. To give orders with good grammar, you use the imperative mode

If you are referring to the proper way to give instructions as a leader or in the corporate world, you need to do it properly, respectfully, but in an energetic way to express authority. It is a command, expressed with respect, but a command that needs to be obeyed.