Which cocktail is characterized by a preparation method of Pour and has no garnish?

The cocktail identified in your response, which is characterized by a preparation method of "Pour" and has no garnish, is indeed the Surfer on Acid. This drink typically consists of ingredients that are simply poured together, making it straightforward to prepare. The Surfer on Acid combines Jägermeister, coconut rum, and pineapple juice, resulting in a tropical flavor profile that appeals to many.

One key aspect of this cocktail is that it is served without a garnish, which aligns perfectly with the question's criteria. Pouring ingredients without the addition of decorative elements distinguishes it from other cocktails that might require garnishing or more complex preparation techniques. This simplicity in its preparation method and presentation contributes to its popularity in certain social settings, particularly among those who enjoy sweeter, fruit-forward cocktails.

In the context of the other choices, while some might involve pouring, they often include garnishes that would not fit the specific criteria outlined in the question. This reinforces why the Surfer on Acid is the correct selection for the characteristics described.