In: Economics
1) One communication method would be to leave a message over the messaging app when I'm actually running late so that he gets notified and there is not everyone required to know this and another communication method is to drop him a personal call so that he would get to know the details if he doesn't see the message
2) since it's an official issue and many of the people should actually no this, one important communication method is to to use a sign board for few days in front of the office so that everyone gets an idea and another mode of communication is to draw an official mail so that it becomes formal and they know about it
3) When I want to pitch a product, one mode of communication is direct interaction so that I would actually get to make them understand about the overall product and another mode of communication is print media where usage of pamphlets can get to reveal the information about the product in a detailed manner so that they would be interested in purchasing that product