3D Button?

Hello Unity3D.I have a question about 3D buttons?Is there a way to make a model a 3d button whenever a character presses it?For example,i made a 3d text named play in blender3D and i was wondering if i could make that into a button to click so that the game could be able to play.IF anyone knows how i can do this.Can you please tell me how?

Put a box collider on the text. Put a script on it with an OnMouseDown() callback.