how to pronounce s sound in english ?

Listen to "what's up":

http://www.howjsay.com/index.php?word=what%27s up

Listen to "that's it":

http://www.howjsay.com/index.php?word=that%27s+it&...

Listen to "chickens":

http://www.howjsay.com/index.php?word=chickens&sub...

Listen to "looks good":

http://www.howjsay.com/index.php?word=looks+good&s...

Cheers ebs

S is sssss when it comes after an unvoiced consonant. S is zzzzzz when it comes after a voiced consonant.

Looks sounds like luksssss because k is an unvoiced consonant.

Floods sounds like fluhzzzzz because d is a voiced consonant.

What's a voiced consonant and what's an unvoiced?

Put your fingers on your Adam's apple(that general area if you're a girl), you'll feel vibration when you say a voiced consonant; when you say an unvoiced consonant you won't feel anything.

People may sound different but stick to the rule and you'll be OK.

This is called slippage. It happens in every language. When two sounds are similar, people in certain groups (such as a new generation or those in a specific geographical area) start to say them slightly more like whichever sound they find easier. Sometimes spelling changes follow but this is rare.

s sound!

It is the "S" sound in Silence.

Please forget Watzup application.