Fruits attract birds. Offers?

Trees bearing tasty fruits attract birds and squirrels to relish on and remember about. These guests also return to those trees each day remembering about the good and tasty fruits. Similarly, a business firm should produce quality products and give (free) offers of them - occasionally (if possible!), to get non-stop flow of customers! Then these customers shall search in future for its products and buy them where ever they are and where ever they go!