From the sheet music at Baylor University:


WHEN YOU’RE SMILING (THE WHOLE WORLD SMILES WITH YOU)
Words and music by Mark Fisher, Joe Goodwin, & Larry Shay
Copyright 1928 by Harold Rossiter Music Co., Chicago

1. I saw a blind man; he was a kind man,
Helping a fellow along.
One could not see; one could not walk,
But they both were humming this song.

CHORUS: When you’re smiling, when you’re smiling,
The whole world smiles with you.
When you’re laughing, when you’re laughing,
The sun comes shining through;
But when you’re crying, you bring on the rain,
So stop your sighing; be happy again.
Keep on smiling, ’cause when you’re smiling,
The whole world smiles with you.

2. I used to worry; I used to hurry
Each time it started to rain.
Now I see light, learned wrong from right,
And you’ll never hear me complain.