Question: [Source](http://www.imdb.com/title/tt1371111/synopsis?ref_=tt_stry_pl)

> 
> she meets a man named Hae-Joo Im, who it is revealed was behind her friend, and then her.
> 
> 
> 

What does this mean behind her friend, and then her?

Answer: 
The definitions can be confusing since it would lead one to believe that to being happy is a condition of being cheerful.

Robbins is referring to "happy" as a general contented state of being. We all know the feeling when things are going our way, the sun is to our back, and everything is going smoothly and well.

Being "cheerful" is a state of not being angry mainly characterised by have outward displays of being happy, particularly having a smile. The definition of "cheerful" is a noticeable display of happiness.

It is possible to be cheery on the outside, having a facade, while being sad on the inside, thereby not showing ones true emotions. This is what Robbins is referring to.
Be cheerful no matter what happens...