Show text after a collision

Hi everyone!
I need help! I’m trying to create a text box when my third person controller collides with an object, and I would like that the text will be showed during the collision. I’ve tried a lot of solutions but it didn’t work. Please if somebody could give me advices, or teach me how to do it, it will be very helpful!

Thanks in advance!

This page might help you with detecting if your object is currently colliding:
http://docs.unity3d.com/ScriptReference/Collider.OnCollisionStay.html

There are several ways to show text to the player, you might want to use the build-in stuff for GUI
More info about that:

I hope this will help you with your problem!

-Cuni