Reginald greets his regular customers by name every morning when they come in for coffee. He offers them a taste of anything special he is cooking that day. He has a database with their birthdays, and offers them free meals on their birthdays. Reginald hopes that this attention to his "regulars" will encourage them to

Spread positive word of mouth

Explanation:Spreading Positive Word of Mouth: This is a free advertising but which works effectively for business. It is crucial especially for those who won small businesses , who can't go big on making advertisement, they save a lot through relying on this method.

What is a word of mouth?

Word of mouth (WOM) refers to how one person tell others about how good a certain product is or service is.

People usually trust a word of mouth more than they would trust a formal advertisement because they know the person who has bought the product will speak from the actual experience and that person has not been paid to do that.

answer; substantive law;