About 450 people gathered at Bishan-Ang Mo Kio Park yesterday to recite the national pledge but passers-by would have found it hard to catch the words. For the recital was done in sign language, by hearing-impaired participants, workers and volunteers of groups for people who cannot hear, as well as members of the public, including junior college students. Mr Toh You Xin, chairman of the "Sign for SG50" event, said: "We want to inculcate a sense of Singaporean identity and deaf awareness on the nation's 50th birthday through the reciting of the national pledge in sign language." At the event held by the Singapore Association for the Deaf, a new national record was set for the highest number of people reciting the national pledge simultaneously in sign language. They were led by guest of honour Ms Sim Ann, Minister of State for Education and Communications and Information.