Begin at a comfortable temperature
Very cold chocolate can mute aroma and feel harder than it will at a comfortable room temperature. Give a wrapped bar time to settle after refrigeration, especially in warm climates where cool storage may be necessary.
Use four easy cues
Notice the aroma before eating, the sound and feel of the break, how the piece melts, and what remains in the finish. There is no correct vocabulary and no need to find every note printed on a package.
Water and a plain cracker can reset your palate between bars. Strong coffee, perfume, or very spicy food can compete with quieter aromas.
Compare, do not rank
Side-by-side tasting is useful because differences become easier to notice. Comparing chocolate can be a conversation rather than a contest: notice which qualities stand out and when you might enjoy them.