Ha Ha Ha or Ho Ho Ho are pretty common ways to express the sound of laughing.

This is the kind of laugh that comes from deep inside the belly and may even hurt.

Blow a kiss to a friendly person or one of your fans.

These facemarks are stretching because they’re about to go to sleep or they just woke up.

These Kaomoji Emojis use the characters 艸 to make hands covering their mouths.

Sloppy kiss Japanese Emoticons.

These are just your sleepy kaomoji Emoticons.

These are just some very simple Laughing Kaomoji.

These Kaomoji have lines behind them to indicate the path they just ran and the speed at which they ran it.

These emojis use ε=’s behind them to make clouds of dust as they run away.