WordNet (r) 3.0 (2006):

look around
    v 1: look about oneself; "look around to see whether you can
         find the missing document"

Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "look around":
   beat the bushes, burrow, delve, dig, explore, forage, frisk,
   go through, hunt, look round, look through, nose around, poke,
   poke around, pry, research, root, search, search through,
   smell around