Why do we say 'um', 'er', or 'ah' when we hesitate in speaking?

http://www.theregister.co.uk/2006/05/06/the_odd_body_language_fillers/

An interesting article from 'The Register' on using fillers in language.

Steven Pinker - Language habits

https://www.ted.com/talks/steven_pinker_on_language_and_thought





"Language is a window onto human nature"

• Language emerges from human minds interacting with one another
• Visible in unstoppable change in language
• Slang, Jargon, Language formation, Historical change, Dialect divergence

Communication model - Sender - Message - Receiver

Ted Talks

https://www.ted.com/talks