Ability to get time-left until next print on default printer

[Slimy10]

Hi,

I have an entity, and the player can use it to change to a random pool of player-models for 60 seconds, then they return to their origianl playermodel.

This all works 100%, however, I want to be able to draw on the Player's screen with a HUD.

How can I do this? How can I tell when ENT:Use has been used, to draw HUD for the client?