What is typically included when you order a drink "On the Rocks"?

When a drink is ordered "On the Rocks," it specifically refers to the serving style where the drink is poured over ice. This method is commonly used for spirits as it not only chills the beverage but also allows for slight dilution as the ice melts, enhancing the overall drinking experience. The presence of ice helps to maintain the temperature of the drink for a longer period while retaining its intended flavors.

The other options do not accurately reflect the definition of "On the Rocks." A salt rim is typically associated with cocktails like margaritas, chilled glasses are used for serving drinks but are not a requirement for this specific phrasing, and flavoring is an addition that is separate from the basic definition of how the drink is served.