The sign for "hungry" is made by forming your right hand into the letter "c."
Move your hand down the middle of your chest. You don't actually have to touch your body but most people do -- especially if they want to emphasize how hungry they are with a stronger movement.
The sign for "hungry" is also the same as the sign for "wish." Some people start the sign for "wish" on the upper chest and prefer to start "hungry" from a slightly lower position. I don't mess around with that. But if it helps as a memory aid, think of a "wish" coming from your heart, and hunger coming from your belly. But, again, it is okay to use the same sign for both concepts.
On the other hand, you make the sign for eat by taking you strong hand, with the tip of your thumb touching the tips of your fingers and tapping it on your mouth. (The universal sign for eating) The same sign is used for food.
