▁the ▁middle ▁finger ▁- ▁just ▁enough ▁vague ▁sens ation ▁to ▁attract ▁the ▁attention . ▁As ▁the ▁subject ▁gives ▁attention ▁to ▁the ▁touch ▁of ▁your ▁thumb , ▁you ▁shift ▁to ▁a ▁touch ▁with ▁your ▁little ▁finger . ▁As ▁your ▁subject ' s ▁attention ▁follows ▁that , ▁you ▁shift ▁to ▁a ▁touch ▁with ▁your ▁middle ▁finger ▁and ▁then ▁again ▁to ▁the ▁thumb . ▁This ▁ar ous al ▁of ▁attention ▁is ▁merely ▁an ▁ar ous al ▁without ▁const itut ing ▁a ▁stim ulus ▁for ▁a ▁response . ▁The ▁subject ' s ▁withdraw al ▁from ▁the ▁hand sh ake ▁is ▁arrested ▁by ▁this ▁attention ▁ar ous al , ▁which ▁establish es ▁a ▁waiting ▁set , ▁and ▁expect ancy . ▁Then ▁almost , ▁but ▁not ▁quite ▁simultaneously ▁( to ▁ensure ▁separate ▁neural ▁recognition ), ▁you ▁touch ▁the ▁unders ur face ▁of ▁the ▁hand ▁( w rist ) ▁so ▁g ently ▁that ▁it ▁bare ly ▁suggests ▁an ▁up ward ▁push . ▁This ▁is ▁followed ▁by ▁a ▁similar ▁utter ly ▁slight ▁down ward ▁touch , ▁and ▁then ▁I ▁sever ▁contact ▁so ▁g ently ▁that ▁the ▁subject ▁does ▁not ▁know ▁exactly ▁when ▁- ▁and ▁the ▁subject ' s ▁hand ▁is ▁left ▁going ▁neither ▁up ▁nor ▁down , ▁but ▁c ata le ptic . ▁Term ination : ▁If ▁you ▁don ' t ▁want ▁your ▁subject ▁to ▁know ▁what ▁you ▁are ▁doing , ▁you ▁simply ▁dist ract ▁their ▁attention , ▁usually ▁by ▁some ▁appropriate ▁remark , ▁and ▁cas ually ▁terminate . ▁Sometimes ▁they ▁remark , ▁" What ▁did ▁you ▁say ? ▁I ▁got