Before an event in Guangzhou, an advertising campaign is launched involving:

1. A bus covered in QR codes that drives around the city.

2. Young people wearing QR code boxes on their heads, walking around public spaces.

These QR codes are likely scannable and lead to information, promotions, or event registration pages.

✅ Why It’s Effective

1. High Visual Impact

• A bus full of QR codes and people with QR-code box heads immediately grabs attention.

• It disrupts the everyday visual environment, making people curious and more likely to engage.

2. Interactive and Engaging

• QR codes turn passive viewers into active participants.

• People can quickly scan with their phones to find out what’s going on — turning interest into action on the spot.

3. Mobile Advertising

• Since the bus moves through the city and the individuals are on foot, the campaign reaches various neighborhoods and demographics.

• It's essentially a moving billboard combined with street-level guerrilla marketing.

4. Shareability

• It's quirky and unusual, making it likely people will take photos or videos and post them on social media.

• This creates organic reach beyond just the people who see it in person.