Listen for environmental clues. There will be times when the natural world around you becomes aware of a unicorn's presence, even when you cannot yet perceive the majestic beast. By paying attention to subtle sonic changes, you can increase your opportunities for spotting a unicorn. Practice keeping an ear out for: a sudden hush of crickets an emphatic hoot of an owl a rustling of oak leaves in a grove (if oak leaves are unavailable, elm leaves may be substituted in a 2-to-1 ratio) a bumbling of bees a sigh emanating from the brambles an improbable tinkling of wind chimes (see next chapter) a pause in a woodpecker's hammering on an old tree trunk a whisper amid an autumnal harvest a melodious rumbling of thunder a snapping of twigs as small animals leap aside