 These were eventually compiled into the mural, and those submitting had a chance of winning several lucky draws.While some agree that Singaporeans are often cold in public and there needs to be encouragement of more visible goodwill in society, others saw the campaign as a form of social control.Critics also argued that the campaign perpetuated racial discrimination and self-degradation of Singaporeans by encouraging them to smile in the presence of delegates just because they happen to be "ang mo" foreigners.