“A smile is the only infectious affliction everyone is encouraged to spread.”
“Kindness is infectious. Spread the disease.”
“Yawns are not the only infectious things out there besides germs.Giggles can spread from person to person.So can blushing.But maybe the most powerful infectious thing is the act of speaking the truth.”
“Rob smiled his slow, infectious smile-and suddenly everything was all right.”
“Smiling is infectious,you catch it like the flu,When someone smiled at me today,I started smiling too.”
“We tried not to smile, for smiling only encourages men to bore you and waste your time.”