Listen.

A friendly friend's friend casually mentioned to me.

Since I was a kid, I listen to what my daddy & mummy says .
Since I started schooling, I listen to what my teachers say.

After four year, I'll be working.

Since then, I will have to listen to what my clients say.

Listen, listen, listen... my specialty?

Pathetic but at least, at last I'll get paid for listening.