Adult learners, to learn, must be emotionally comfortable with the learning situation. Adult learners need to feel they will benefit from the training. Adults retain what is relevant to them and what they need to do their job. If they see where they will apply the information, they will be motivated and learn better. People learn in different ways and at different speeds.
People learn best by doing which includes active participation in the learning process.
Adults will learn best if a variety of training material is used. Everyone does not learn the same way. Use a variety of methods of presenting material, which provides different ways to learn. Reinforce learning by praise and rewards. Treat adult learners with respect.