A nondescript tobacco shop in a Tokyo neighbourhood has become an unlikely tourist attraction thanks to a four-legged shopkeeper who has become an online sensation.

With millions of video views on the internet Shiba the dog uses his nose and paw to open a sliding glass window and greet customers or curious visitors who have travelled to the Shimada Cigarette Shop from afar.

He may be the most adorable salesman ever, but is often found napping on the job or snacking on a cucumber in a glass display case under the counter.

Shiba the dog uses his nose and his paw to open a sliding glass window at a shop on the outskirts of Tokyo

Visitors have travelled from afar to give the dog a snack, pat him on the head or pose for a selfie with him

When a customer rings the bell for service, he leaps to his feet and opens the window for his owner, Hisako Suzuki, who runs the shop in a west Tokyo neighbourhood, near Musashi-Koganei metro station.

The intelligent Shiba Inu dog is fed treats and patted on the head by visitors who show up just to see him or buy cigarettes, snacks or magazines.

When groups arrive, they queue to pose for photos with the internet star.

One YouTube video showing his customer service skills has more than two million views.

Shiba's owner has trained him to open the sliding glass window when customers ring a bell for service

One of the videos featuring Shiba's customer service skills has more than two million views on YouTube

Shiba can often be found napping on the job or snacking on a cucumber in a display case under the counter

Suzuki said business has picked up since the videos went viral, and tourists are invited to sign and leave comments in a guestbook.

Some visitors have travelled from as far away as England and Taiwan to say hello to the seven-year-old dog.

British tourist Carrie Furlong told Reuters: ‘I've always wanted to come to Japan.