- communications (verbal or non verbal, website, chat, face-to-face)
- eliminating annoying and interrupting of your customers withouth reason and permission
- pricing - pricing should not be boring
- knowing your customers
- ability to make advertising that sells your products
- better products - creat product that people love, better products are not made based on research, but on ideas that pop-up in your head because you want to amaze your customers and make their life better.
Successful marketing must bring profits to your company.
If it does - you are a good and smart marketer.