crack a smile
To smile, especially while attempting not to.
Life is a gamble, we scramble for money I might crack a smile, but ain't a damn thing funny
noun
A facial expression comprised by flexing the muscles of both ends of one's mouth, often showing the front teeth, without vocalisation, and in humans is a common involuntary or voluntary expression of happiness, pleasure, amusement, goodwill
She's got a perfect smile.
He has a sinister smile.
Favour; propitious regard.
the smile of the gods
A drink bought by one person for another.
verb
To have (a smile) on one's face.
When you smile, the whole world smiles with you.
I don't know what he's smiling about.
To express by smiling.
to smile consent, or a welcome
I had occasion […] to make a somewhat long business trip to Chicago, and on my return […] I found Farrar awaiting me in the railway station. He smiled his wonted fraction by way of greeting, […], and finally leading me to his buggy, turned and drove out of town. I was completely mystified at such an unusual proceeding.
To express amusement, pleasure, or love and kindness.
When last I saw thy young blue eyes, they smiled.
To look cheerful and joyous; to have an appearance suited to excite joy.
The sun smiled down from a clear summer sky.
To be propitious or favourable; to countenance.
The gods smiled on his labours.