Young people opened their hearts at the vigil and giving it a special poignancy was the presence of a Chongqing man who claimed he was jailed for two years in the wake of the crackdown.
The man, Song Shiyu, said he held a special respect for Hongkongers because of the yearly vigils, saying the underlying spirit is so precious.
Among others making the occasion special was David Yiu Sing-wai, 19, from City University. He was part of a group from the Hong Kong Federation of Students who went on hunger strike for 64 hours to show their passion for freedom and democracy.
"We cannot change things immediately," he said. "We need to persevere."
Samuel Chan, from Hong Kong University of Science and Technology said: "We are also giving out this book called 64:24 to educate people. This book is made by students from nine different universities to offer a factual and academic perspective on Tiananmen."
Mabel, 21, from the Student Christian Movement, said: "What we are doing is important and I believe it will pay off in the future. We believe this will encourage people to fight for freedom of democracy and their rights to civic participation and demonstration."
Retiree Cheung Kuek-wing, 66, said: "I come here every year. I have cancer and not long to live. I also have trouble walking but I still come because it is my duty to let others remember this incident and to support this cause."