If you didn’t drink yourself silly over the weekend in the name of the Irish, then you’ve still got today to pull it off. When you’re enjoying your first Guinness of the day (which any self-respecting St. Patty’s Day reveler clearly should be doing, like, right about now), pay eagle eye attention to the bartender’s two-part pour technique. Does his or her performance at the tap offer you ample opportunity to observe the “marvelous surge,” domed crown or “perfect, velvety head?” If not, you might want to refer said bartender to the simple Guinness Perfect Pint Pour tutorial below. Bartenders always love it when random drunks correct their technique. Trust us. And enjoy your last excuse to get rip-roaring stupid intoxicated until, well, the weekend.