Bartender-Approved Tips for Negotiating Deals at the Bar The bartender knows all, hears all and sees all.

Bartenders have seen it all. And when it comes to business meetings at a bar, they often know from a glance if things are going well -- or when they're heading for a spill. Let the insights from these three barkeeps guide you -- and make your next meeting a success.

Always be on

"When you're bartending, someone is always watching you. You may have had a terrible day, but you never let it show. And when conducting business, you're also on a stage and need to put everything into your performance and maintain the positive energy."

—Simon Ford, cofounder of spirits brand The 86 Co.