/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: DanteMatias https://public.slidesharecdn.com/v2/images/profile-picture.png Smiling is infectious you can catch it like the flu when someone smiled at me I started smiling too when I passed the corner someone saw my grin when he smiled I realized I passed it onto him I thought about that smile and realized its worth a single smile just like mine could travel round the earth so if you feel a smile begin don't leave it undetected lets start an epidemic quick and get the world infected