The Singapore Children's Society kicked off its first Bully-Free Roadshow yesterday at Jurong Point Shopping Centre.
At least one in four pupils is bullied at school, says the society.
The two-day roadshow aims to educate the public, especially parents, on the importance of preventing bullying among young people.
It features game stations, a photo booth and a pledge booth for people to write down their pledges for a bully-free environment.
The society also conducts camps and workshops to educate students on what to do should they or their friends face the problem.
Its counsellor Tan Kai Lin told The Straits Times the most common form of bullying is verbal, though cyber bullying is on the rise because of easy access to the Internet and lax parental supervision.
Ms Luisa Gan, 21, Miss Singapore Tourism Queen International 2014 and Miss Singapore Model of the World 2014, said she was bullied by her peers at junior college because of her weight.
"I would find excuses to skip classes or be late just to avoid them," said Ms Gan, who supports the Children's Society.
"Reach out to any helplines or children organisations, as the volunteers are always ready to lend a listening ear to help you," she said.