I've just finished working out and needed to re hydrate my body. I had a firm, flat stomach before I worked out, but now my belly is so water logged and bloated! I sit back and rub my belly while gurgling sounds occur on their own. Then I my belly out and in, creating waves of water you can hear sloshing around inside. I take drinks of water and you can hear it going down. I can even feel the tickling of the water as it gurgles down. The waves are easily felt within the walls of my belly and even my belly button.