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