Your goal is to slide softly from your lowest pitch to your highest pitch as you say the word "Whoop." Make sure the sound is soft, with lots of breath support and with an extra 'puh' sound at the end of the word. Imagine saying "whoop-puh." Repeat 8-10 times, then reverse and slide your pitch from high to low. This time, say the word "boom" Repeat 8-10 times. In both cases, focus on the sound and vibration at your lips. The goal is to perform the slides without voice breaks.