Generally purpose to advertise a product is, to familarize the customer, or client from it. It includes what the porduct is?, What is the usage of it, How to use it, what results come after the use of it . Moreover, ads also make for the enhancements of sales of the coresponding product. The People of my country often use such products that are papolar because of this advertisements.
On the first hand, advertisements make to tell us what the problem is before using a product, how this product works and how our lives improve after using it. For example, somebody is working on his computer and some mosquitos irrtating him, he is dirturbing from it, then how he gets rid after the use of mosqueto repellent lotion. Here is another example , a man working in his office suddenly he observes dandruf in his shoulder, and after the use of some shampoo (anti dandruff shampoo). His hairs would be silky, shinny and dandruff free. Moslty People are effected from the products that are familiar world wide, because of its publicity, main cause is, commercial ads.
On the other hand, some people may also buy products just because of they like it after watching ads of the pertaining product even they don’t need it . e.g a young boy is watching a football match in the television, and the biscuit or choclate ad come. He likes the biscuit after watching the ad then he would buy it.
To sum up, people mostly like the things from ads and they buy it some may be for their need and some they donot need they just liked it form the ads.