Andy is generally kind and outgoing. He's very upbeat and talks happily for most of the game, despite threats that come his way. He's quite naive, He seems to look up to his friends greatly, often taking what they say as the right thing, regardless of whether it is or not.
It's debatable whether or not Andy is easily frightened he doesn't seem worried about wandering around a dark barn or opening a present and seeing a literal corpse, however, he does seem to be scared Peter of Peter the pumkin