What's the secret smile in your heart?

It's snigger to laugh in secret.

a free smile is a smile.

an unpleasant and forced smile is a wry smile.

a sly and insidious smile is a crafty smile.

what is a cheerful smile?

a meaningless smile is a giggle.

a contemptuous, sarcastic or helpless smile.

a loud laugh is a burst of laughter.

an unreal smile made on purpose is a fake smile.

Laughing with a belly is a belly laugh.

Extended information:

Laughing philosophy.

the essence of laughter is a happy spirit.

The phenomenon of laughter is to let smiles and laughter accompany your life.

There are many forms of laughter, all kinds of them, all the time and everywhere.

The content of laughter is rich and colorful, including a person's life.

The themes of jokes and jokes abound and can be compiled into albums.

the politics of laughter. People who do political and ideological work must smile and not keep a straight face.

Pedagogy with laughter, Confucius said, "It's not bad to learn from time to time." This is Confucius' encouragement to his students to study hard. Reading is a happy thing. At school, we often hear the sound of reading with laughter.

The art of laughing and laughing, the laughter of the actors, is so pleasant and happy, so when people watch comedies, burlesque and circus performances, the theater is always full of laughter. Literature with laughter, cross talk is literature with laughter.

Baidu Encyclopedia-Laugh