You can introduce the basics first, that is, the brand (remember to pronounce those French, Italian or Spanish correctly, otherwise it will be embarrassing) and the year and place of origin (or grape variety). If necessary, you can say which kind of oak barrel is brewed, which is more professional.
Then you can introduce fruit fragrance, which is usually divided into purple fruit system or red fruit system. If you have other special materials, you can also introduce them to him. For example, some red wines will put chocolate or pepper.
Remember that the more experienced you are, the easier it will be, otherwise people may think that you are a little insulting to his wisdom.
The best way is to introduce the brand and year (all others are omitted) and then give the other party wine tasting directly. If people are Dong Jiu, they naturally don't need to introduce it and enjoy the wine tasting process.
When introducing wine, the brand side of wine must face the customer so that he can see it easily.