If we open up the DemoScene that is included within the Sample Assets that came with the XR Interaction Toolkit, you’ll see that Unity has provided us with a scene to play around with what the XR Interaction Toolkit has to offer.

If we navigate around the scene, we have options to test play the mechanics of how things work within the XR Interaction Toolkit.
If you select an object and look within the Inspector, we can see that the objects have a variety of scripts that enable VR Interactions like the XR Grab Interactable Script.