It is always unfair to force people to smile when they are not in their best selves. 

We cannot be happy all the time. 

And that is what being human all about. 

We are dealing with different things and have a forever-changing emotion. We all have gone through hard times. 

Asking people to smile is like denying that they have feeling too. 

Instead, approach them in a good manner. 

Ask what might have been bothering their mind. 

We are all broken anyway. So let’s be nice.