P13.3 / Vocal variety / Rate of speech. I picked a couple of "slower than normal" rate topics and a couple of more exciting "faster than normal" topics. If these are not what you had in mind, let me know.
Choice 13 of 13
VIENNA, AUSTRIA - MAY 31: Dariusz Popiela of Poland competes in the Kayak (K1) Men's semi-final heat during the Canoe Slalom European Championships on May 31, 2014 in Vienna, Austria. 231 athletes from 27 nations, including 13 of the German Canoe Federation (DKV), are competing at the new whitewater course on the Danube island in ten title decisions from Friday to Sunday. (Photo by Thomas Lohnes/Getty Images)
From Lucas Chapters 6-13, 18