AMA and facebook

One fine afternoon, my sister came home for lunch and then lied down on the couch playing her Iphone. Suddenly, she said "Tomorrow is aunt's birthday".
My ama being curious she asked, "How do you know???"

My sister replied, "Internet la,.. facebook!"

My ama praised the powerful of the Internet. "Wahh, very pannai hor!"

Out of nowhere, she asked again, "How come you all didn't know my birthday the other day?"

My sis and I burst into laughter and I said to my sister, "jie, ama jealous lahh" while she explaining that she must have a facebook account first...

HAHAAHAHA