Push them back.
( ( ( Push them ) back ) . )
(ROOT (S (VP (VBP Push) (NP (PRP them)) (ADVP (RB back))) (. .)))
Pull them this way, toward us.
( ( Pull ( them ( ( ( this way ) , ) ( toward us ) ) ) ) . )
(ROOT (S (VP (VB Pull) (S (NP (PRP them)) (NP (NP (DT this) (NN way)) (, ,) (PP (IN toward) (NP (PRP us)))))) (. .)))