What role does the bartender play in the bar?

2. You can play fancy bartending to bring something interesting to the bar.

3. Introduce and promote wine to promote bar consumption.

4. Of course, wine can be mixed, and all kinds of fancy varieties, preferably with certain characteristics, can attract friends who like cocktails to come again.

PS: At present, there are few regular bartenders, but they are usually recruited by bars to perform as bartenders.