How to open a menu with Entity USE?

I did this once before and cannot for the life of me figure it out again. How do you make it so when you press E on a SENT it will open a menu client side?

**[ENT.Use

http://wiki.garrysmod.com/favicon.ico](wiki.garrysmod.com/?title=ENT.Use)** along with Usermessages

Ohh drrr :stuck_out_tongue: Knew it was something simple! Haha thank you! Works perfect!