* A rock: You can hold a rock in your hand and feel its texture and weight.
* A tree: You can touch the bark of a tree and feel its rough surface.
* Your own hand: Feel the warmth and texture of your own skin.
* A piece of paper: You can crumple it, feel its smoothness, and hear the sound it makes.
* A glass of water: You can feel the coolness of the glass and the wetness of the water.
Anything that takes up space and has mass can be physically touched.
