With the help of this (A20) Simple Player Expression-system mod, you can easily share a large number of different expressions and have a lot of fun while doing it. It can be used to show expressions while enjoying the game.

This is a very simple way to communicate. You only need to press the t key to open the chat box and click on your desired expression. There are 28 expressions available so you will not run out of showing what you feel while playing.