What is the term for the practice of serving complimentary drinks to customers?

The practice of serving complimentary drinks to customers is commonly referred to as "drinks on the house." This term indicates that the establishment is providing the drinks free of charge, typically as a way to enhance customer satisfaction, encourage loyalty, or promote a friendly atmosphere. Offering complimentary drinks can be a strategic marketing approach to attract new customers or boost morale among existing ones.

In contrast, "Happy Hour" refers to a specific time period during which drinks are offered at reduced prices, rather than for free. "Free Pouring" is a technique related to the way drinks are prepared and served, ensuring consistency in the pouring of spirits without using a measured tool, which does not pertain to complimentary service. "Promotional Serving" could imply a variety of different promotional tactics, but it does not specifically denote complimentary drinks as effectively as the recognized term "drinks on the house."