 Communicate with high warmth, using a positive emotional tone and providing explanations and justifications for your expectations.
( ( Communicate ( with ( high warmth ) ) ) ( , ( ( ( ( using ( a ( positive ( emotional tone ) ) ) ) and ) ( ( providing ( ( explanations and ) justifications ) ) ( for ( your expectations ) ) ) ) . ) ) )
(ROOT (FRAG (ADJP (JJ Communicate) (PP (IN with) (NP (JJ high) (NN warmth)))) (, ,) (VP (VP (VBG using) (NP (DT a) (JJ positive) (JJ emotional) (NN tone))) (CC and) (VP (VBG providing) (NP (NNS explanations) (CC and) (NNS justifications)) (PP (IN for) (NP (PRP$ your) (NNS expectations))))) (. .)))
Speak in a dark and emotionless tone and you can let others know what you expect. 
( ( ( ( Speak ( in ( a ( ( ( dark and ) emotionless ) tone ) ) ) ) and ) ( you ( can ( let ( others ( know ( what ( you expect ) ) ) ) ) ) ) ) . )
(ROOT (S (S (VP (VB Speak) (PP (IN in) (NP (DT a) (ADJP (JJ dark) (CC and) (JJ emotionless)) (NN tone))))) (CC and) (S (NP (PRP you)) (VP (MD can) (VP (VB let) (S (NP (NNS others)) (VP (VB know) (SBAR (WHNP (WP what)) (S (NP (PRP you)) (VP (VBP expect))))))))) (. .)))