Excitement is expectation for the future. Expectations that fun things in the future, exciting things are going to happen, excite people's mind. People will be positive if they have expectations for the future.
When something is exciting, people are crazy about it. Even though it looks hard on the appearance, you can overcome it by doing with being excited. The excitement is the energy to move people.
If you are a manager, make your customers excited. If there is something exciting, customers will gather naturally.
If you are a manager, make your employees excited. It makes a big difference between working while bored and working while excited.
In order to make people excited, you should let people think it is interesting and let them want to try it. Depending on how you show products and services, how you instruct your subordinate, it makes a big difference whether they are excited or not.