Hops need at least 6-8 hours of sun a day, so the South facing side of your home or an exposed site is a good location. Hop vines (called bines) can grow to over 25 feet and weigh over 20 pounds, so vertical space for a trellis is important as well.
Often observed flicking its tongue, snakes use their forked tongue to smell the air. Snakes are ectotherms, meaning they must regulate their body temperature externally by sunning themselves or retreating to cool, shaded areas. Snakes hibernate during the winter. Snakes must shed their skin three to six times per year.
It is believed that the snake's tongue is split so that it knows which direction to move based on the preponderance of chemical particles on one side of its forked tongue in relation to a lesser degree of particles on the other side of the tongue. Think of it as akin to having 3-D glasses for the tongue.