Movies like Cocktail and Coyote Ugly have rocketed bartending as a career choice to new levels. In order for a bar to succeed, you will need to have the basic wines, liquors, and spirits, along with the right equipment.
Practise with real ingredients as it helps you get familiar with the appearance of the drink. Bar staff should be treated differently than the staff of a regular company and the traditional boss to workers behavior is in most cases useless. A cooler is another drink served in a highball glass but consists of ginger ale, soda water and a fresh spiral or twist of citrus fruit rind.
Take all of these into account when creating the working practices in your bar. There are several styles of bartending as well, including the well known and very impressive flair style. So the attitudes toward bartending in general had to change to allow for the increased opinions toward the sport of flair bartending.
It is your skill that matters at the end, so appear for the interview in formal attire to impress the interviewer. Remember all the challenging situations you have been in.