peek at it through the fingers in front of your eyes 
(ROOT (S (VP (VB peek) (PP (IN at) (NP (PRP it))) (PP (IN through) (NP (NP (DT the) (NNS fingers)) (PP (IN in) (NP (NP (NN front)) (PP (IN of) (NP (PRP$ your) (NNS eyes))))))))))
(ROOT (S (VP (VB ) (PP (IN ) (NP (PRP ))) (PP (IN ) (NP (NP (DT ) (NNS )) (PP (IN ) (NP (NP (NN )) (PP (IN ) (NP (PRP$ ) (NNS ))))))))))