They may or not pay the personnel for their time. Some companies will invite customers to attend training on using specialized products at their facility. This is done in cases where operation can be best shown in a controlled environment. It is also good for customer relations, because the user becomes much more familiar with the company and its people. Disadvantages include the fact that many people are poor teachers and the possibility that a person is taught incorrect procedures.
Seminars can also be costly, especially if held in some exotic city.
In preparing to teach a class or to an individual, you must have your lesson planned out in advance. Giving a lecture is very similar to giving a speech, in that you must know your material and what you plan to say. Speakers may memorize their speech, but a teacher or trainer does not follow such a strict format. Beginning teachers often follow an outline or list of points to cover for an individual lesson. A popular method of training consists of asking questions and guiding the students through the answering process.