They touch an object, hold it up, or point to it while looking at another person to make sure he or she notices.
( They ( ( ( ( ( ( ( touch ( an object ) ) , ) ( ( hold it ) up ) ) , ) or ) ( ( point ( to it ) ) ( while ( ( looking ( at ( another ( person ( to ( make sure ) ) ) ) ) ) ( ( he or ) ( she notices ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VP (VB touch) (NP (DT an) (NN object))) (, ,) (VP (VB hold) (NP (PRP it)) (PRT (RP up))) (, ,) (CC or) (VP (VB point) (PP (TO to) (NP (PRP it))) (SBAR (IN while) (S (VP (VBG looking) (PP (IN at) (NP (DT another) (NN person) (S (VP (TO to) (VP (VB make) (ADJP (JJ sure)))))))) (NP (NP (PRP he)) (CC or) (NP (PRP she) (NNS notices))))))) (. .)))
They make sure he or she notices by touching, holding up or pointing at an object while looking at another person.
( They ( ( make ( sure ( ( ( he or ) she ) ( notices ( by ( ( ( ( touching , ) ( holding up ) ) or ) ( pointing ( at ( ( an ( object while ) ) ( looking ( at ( another person ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP make) (ADJP (JJ sure) (SBAR (S (NP (PRP he) (CC or) (PRP she)) (VP (VBZ notices) (PP (IN by) (S (VP (VP (VBG touching)) (, ,) (VP (VBG holding) (PRT (RP up))) (CC or) (VP (VBG pointing) (PP (IN at) (NP (NP (DT an) (NN object) (NN while)) (VP (VBG looking) (PP (IN at) (NP (DT another) (NN person))))))))))))))) (. .)))