Berlin's government has launched a $255,000 campaign to rid the city's image as a grumpy and ill-tempered place by hiring 4,000 public servants, such as police officers and train drivers, as "good mood ambassadors," Sweden's The Local reported Thursday.

The campaigners will poke fun at the city's stereotype by handing out ironic post cards with phrases such as "What do you think you're looking at?" and "Do I look like an information desk?"

"A few years ago we did a study that showed that non-Germans consider Berlin a place full of grumpy and boring people," city spokesman Richard Meng told The Local. "We need to show the world that this is not true."

City officials say they hope the campaign will encourage people to be courteous and friendly on a day-to-day basis.

"These cards are fantastic, they show that we don't always take ourselves seriously and that we can laugh at ourselves too," Meng told The Local.

Berlin is visited by more than eight million tourists every year, The Local reported.

Click here to read more on this story from The Local.