The correct answer to this open question is the following.
The three different speaking situations in your environment are the following.
-Speaking situation 1.
Purpose: To give instructions. The contractor gives instructions to the workers in a house construction project.
Delivery: Indirect. He is telling his assistant to go tell the workers about some changes in the facade of the house.
Positive Point: The communication is delivered on time before labor begins.
Relevant suggestion: the instructions must be conveyed directed by the contractor, not by the assistant. Otherwise, there could be misinterpretations or misunderstandings of the original instruction.
-Speaking situation 2.
Purpose: Reprimand
Delivery: Direct, right at the moment. Same case of the contractor and the workers.
Positive Point: Contractor reprimanding one of the workers for a big mistake he made.
Relevant suggestion: Doing it in private, not in public. Reprimands must be private so the worker is not ashamed to be reprimanded in public.
-Speaking situation 3.
Purpose: Congratulate.
Delivery: Direct by the contractor.
Positive Point: He also expresses kudos when a worker does a good job
Relevant suggestion: He must be doing this more often and more sincerely, so the worker really feels the intetion.