YOUNG people had a choice of drifting along aimlessly or stand up and shape the world they see around them. ''You have the choice to be a future leader or a minion,'' said Eric Li Ka-cheung, chairman of the Commission on Youth and member of the Legislative Council, to the girls of the Heep Yunn School. Mr Li was speaking at the school's speech day held recently at its campus in Kowloon. He urged the pupils to set and nurture goals and to recognise the value of independence of thought in their own personal development and in the welfare of society as a whole. He said their futures, and that of the world in which we live, will be ultimately decided by their decision, and their's alone. ''The school has taught you to be independent, to think critically and to make the right decisions. You have the strength and you have the knowledge to help others and to be leaders in society.'' Mr Li's speech was received with rapturous applause by the audience. Earlier in the evening, a lengthy prize-giving ceremony had demonstrated the achievements of the girls in a whole range of activities. It seems the pupils of Heep Yunn had every intention of fulfilling Mr Li's assessment of their potential. Impressive performances in public examinations had been scored at both a personal and group level. In all, 96 per cent of fifth formers gained five passes or more, while the school achieved a 90 per cent matriculation rate at A-Level. A whole series of external scholarships, enabling pupils to further their studies, had been won. These included scholarships to study abroad in Britain and Canada, awarded to Yulanda Chung Ho-yan and Carol Cheung Nga-lai, respectively. Heep Yunn also made its mark both on the sporting field and in the music auditorium. It continued to dominate the inter-school girls' overall sports championships by winning it for the ninth consecutive year, and to come third in the Annual Schools MusicFestival. Young Post asked one of the school's high achievers if she shared Mr Li's optimism for their future. Isabel Yan Kit-ming, who scored four As at A-Level and has just started her first year studying Economics at Hong Kong University, said: ''I hope to do some research after my studies so as to do something for Hong Kong. I am quite confident in the futureof Hong Kong and sure that Hong Kong people's efforts over the past years will not be wasted in the years after 1997.'' Eve Ngan Kwai-ling achieved nine As and one B in this year's HKCEE, and has been awarded a number of scholarships and awards for her academic and musical excellence. She hoped to become an architect and would travel to the US to study because ''the educational system over there is much better than in Hong Kong, as it's not so stressful and I will have more opportunity to develop my own talents''. It seems at least two pupils will heed Mr Li's advice.