Communication skills - Up-talk vrs down-talk in public speaking effects your credibility.
58:20
Think Fast, Talk Smart: Communication Techniques
7:14
5 Tips To Have A Voice Tone That Sounds Confident
12:30
What's the deal with Uptalk?
11:34
Secrets From Psychology That Make People Respect You
4:15
How To Speak More Slowly and Clearly
44:11
Think Faster, Talk Smarter with Matt Abrahams
3:24
How can I sound more confident when speaking and presenting?
19:13