There's always something to do behind the bar
"Taking care of your guests is first. But cleaning the bar is something that always has to be happening. Organizing the bar. Stocking the bar. Getting set up for the next thing that's happening is huge. Bartenders that are standing around twiddling their thumbs, or leaning on the bartop, or on their phones, or whatever -- they're not doing their job. There's not one bar in the world that's ever finished. Continually clean and stock and organize your bar so it's better and better."
You never have just one task to do at a time
"You always need to do two to three things at a time, and you always need to know what's next to do. That can be at a high-volume time when you've got five guests in front of you and you've gotta remember what order they came to the bar.
"Or, let's say you're working at a cocktail bar and you've got three fancy cocktails to make. You've gotta get your glassware, your ingredients, and all your tools ready. You need to grab things, work with two hands. If you see a bartender working with one hand, they're not bartending efficiently. You always have to be moving with purpose and multitasking, and that's something that takes time. Moving behind a bar doesn't come overnight -- there's a kind of rhythm, a flow."