Expression
different pitch
rhythm
change tone
volume
voice
We might say please read with expression.
http://www.ttms.org/say_about_a_book/how_do_expressive_readers_read.htm
http://www.ttms.org/say_about_a_book/expression_equals_comprehension.htm
http://www.auburn.edu/academic/education/reading_genie/inroads/feltongf.html
http://www.auburn.edu/academic/education/reading_genie/discov/williamshgf.html
http://www.ehow.com/video_4402265_kids-reading-expression.html
http://jenniferwagaman.suite101.com/reading-with-expression-a61578
Facial Expressions
http://face-and-emotion.com/dataface/expression/interpretations.html