Answer:
Sensory imagery is a literary device writers employ to engage a reader's mind on multiple levels. Sensory imagery explores the five human senses: sight, sound, taste, touch, and smell.
Step-by-step explanation: Depending on the context of the entirety of the passage you took this line from could help with finding the answer to the question asked. Normally liquor is something you can taste and see and smell so its either one or more of those. The liquor is being compared to someone who is virtuous. You can guess if a person is virtuous based on their looks but you would be more sure if you were to observe their behaviour. With Liquor you can tell its strength by apperance but more so by smell and taste.