I have very long and elegant fingers, with pale skin on my hands that shows off the blue green veins just so. When I squeeze my wrist it makes my veins swell and pop out from my skin so you can see the patterns they make along my hand twining towards my fingers. I keep a tight hold on my wrists, first the left and then the right, making the veins bigger and more obvious then let go and enjoy the feel and the sight of them returning to normal.