Your goal is to extract the greatest experience of flavor from the rum, so don't be in a rush to decide whether you "like" a particular rum or not. Suspend judgment for as long as you can. The minute you decide that you "like" the rum (or not) you stop noticing the rum and start paying attention to your judgment. Your evaluation gets in the way of your perception and tasting is a game of sharpening perception. (from A Short Course in Rum by Lynn Hoffman)That advice can be applied to a far-wider range of experiences than just tasting rum. I don't think you'd quite want to generalize it for reasons that most adults should be able to figure out for themselves.
But one thing I think we should do is to apply it to a lot of moral judgments about experiences. There is a tendency to make judgments about the moral worth of some activities very early in the game and, when we do that, we stop noticing the activity and pay attention to our moral judgment to our detriment.