I don't know if its good enough, but here you go...
FAKE SMILE
When the world is bad, and I'm sad
I picture the things that'll make me glad
But I know my efforts are going in vain
Because affectations looses the battle in strain.
But I give them a fake smile.
The world is too cruel,
It cannot let you mourn
It'll laugh at you,
If you show them a groan
So following the norm,
I'll get on with beat
Drink my tears and enjoy the sorrow treat.
And I'll give them a fake smile.
When someone betrays you badly,
Breaks your heart sadly
Then your heart must have broken and shattered and cried.
Repeatedly asking the question : why they lied?
But keep them a fake smile.
The key of everything bad is a fake smile
Solves your problem, saves you from trial
Pictures you bold, unaffected from adversity
So don't hesitate to hold in time of calamity
On your face a fake smile.