Show text when Player can interact with things

[MartiogalaLT]

Hello, I have a question, how to make like in this picture, but like with everything "Opening doors" and same things ? If it possible please give me code example.
[IMG]http://portforward.com/games/walkthroughs/Portal-2/Portal-2-small-2.jpg[/IMG]

[Nookyava]

I'll tell you what you can use for it

Eyetrace. Detect if it's a certain entity and then name the function that it can do, aka bed = sleep. Then just paint that to your screen and there you go.

[Rubat]

local pos = sumvector:ToScreen()
and then you use pos.x, pos.y to draw shit.

[MartiogalaLT]

Thanks :)