Tip generously and you'll have an easier time not only getting a bartender's attention but also possibly sweet buybacks. This graphic from Thrillist reveals how to tip a bartender like a boss.
Tipping is a strange practice with no hard-and-fast rules, but these guidelines—from a bartender—should keep you in the bartender's good graces. Hit up the link below for the full graphic, which includes advice like starting the night off right with a "please take care of me tonight" bonus of 50 to 100% of the first round. Also, note that these aren't for your basic bar tips—they're if you want to be remembered by the bartender.
How Much You Should Tip Your Bartender If You want to Be Remembered | Thrillist