Okay, a tip jar is optional.

But at a sit-down restaurant, the server deserves at least 15%, with an additional 5% (each, don’t skimp) for good service and feeling nice.

Leaving at least $2 per person is necessary if the food was cheap.

Think about it: they make you happy, you make them happy. As a former server, I can justify that about 60%-70% of your living expenses come from tips. It’s just the right thing to do! It encourages good service. As opposed to Japan and China and other places around the world where tipping is considered rude.

Fun fact: ethnicity, gender, the weather outside, the size of the bill, and whether your server writers a happy face effects the tip amount more than good service. With the latter, ladies who draw a smile had their tips raised on average 9%, whereas guys had their tips lowered by 3%.

Photo courtesy of AllThingsD

Sourced: VlogBrothers

Curated: Online Editor Aryssah Stankevitsch @stnkvtsch