Hypnosis works with the power of suggestion. Suggestion, in this context, occurs when someone is unable to consciously process their environment and messages leak in subconsciously.

Above is my favorite commercial from the 2005 Superbowl. It’s the perfect example of a great marketing tactic. Everything is completely random. You become confused and/or engrossed in the action. Then they slip in the product message (even jokingly calling it optional). The commercial keeps attention long enough to suggest using FedEx.