Last updated: February 5, 2026
Walk into a lively Izakaya or a sushi restaurant, and the entire staff will shout “IRRASSHAIMASE!!” at the top of their lungs. Tourists often freeze, thinking the staff is angry or yelling instructions. Relax! They are simply saying “Welcome!” with high energy. It is a sign of hospitality and liveliness.

Many tourists feel awkward and wonder, “Should I say hello back?” The answer is No. You don’t need to shout back. In fact, if you yell “Hello!”, they might be confused. A simple nod or a small smile is enough. Just ignore the volume and hold up your fingers to indicate how many people are in your group.

The volume depends on the shop. In a quiet luxury boutique, they will whisper it elegantly. In a fish market or a cheap bar, they will roar it like a battle cry. The louder the shout, the more “energetic” and “fresh” the shop claims to be. Enjoy the noise—it’s the sound of Japan!
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