Final answer:
The figurative expression that describes an innocent, unsuspecting person as being unsure or confused in a new situation is 'lost in the woods.'
Step-by-step explanation:
An innocent, unsuspecting person is said to be "lost in the woods" when they are unaware and potentially in a difficult or new situation without clear direction. This phrase often suggests confusion or lacking guidance in unfamiliar territory. The term metaphorically refers to someone who is inexperienced or naive in particular circumstances, much like a person who would be literally lost in a forest or woodland area.
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