IRASSHAIMASE AND YOKOSO ARE BOTH WORDS OF WELCOME USED WHEN GREETING CUSTOMERS AS THEY ENTER. YOU WILL HEAR THEM WHEN YOU ENTER ALMOST ANY SHOP IN ADDITION TO IZAKAYA, BUT IT CAN BE CONFUSING THE FIRST TIME YOU HEAR IT! IT SOUNDS LIKE THEY’RE SHOUTING AT YOU AS YOU WALK IN, BUT IT’S JUST A HEART WELCOME.