In the rich text editor:
@narehate
In a comment:
[narehate](https://chowlings.com/user/narehate)
For Names and Avatars:
In the rich text editor:
%narehate
In a comment:
[![narehate's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/narehate) [narehate](https://chowlings.com/user/narehate)