Yes, you read that correctly – FREE WINE at restaurants! It can happen!
Step 1: Before you sit down, look for a section with a WAITER, not a waitress. A few different studies have found that men pour more wine than women do, about 9% more on average (Probably best not to ASK for a male waiter though. It’s not worth looking like a sexist jerk just to get one more sip for free).
Step 2: Hold your glass while your waiter pours the wine. A study in 2013 found we pour about 12% more wine when someone’s holding their glass compared to when it’s sitting on the table (The chance of them spilling on you is a little higher though. So hold it over the table, not over your lap).
Another option is to just get a BOTTLE of wine instead of ordering by the glass. If your table is having four or five glasses, it’s a lot cheaper that way.