There is probably no better book on the subject than Dale Carnegie's How to Win Friends and Influence People. see: http://en.wikipedia.org/wiki/How_to_Win_Friends_and_Influence_People Start there.
you can improve by listening and good communication
Communication has an ability to improve the personality of both sender and receiver . In India if we are talking in English than it can improve our reputation and position in the society . Communication has an ability to develop our personality.
you need to shut the #@$%&* up
The narcissist cannot improve their personality.
How does communication improve society
discuss personality
Without communication is can be no negotiation, and if you have a likeable personality it will make negotiating much easier.
how did johan gutenberg improve communication technology
be a good listioner
it is useful to improve our knowledge , improve our personality
There are many ways in which you could improve your personality such as acting nicer to those around you. You could also improve your personality by being more selfless and more generous.
its an overall assessment of a performers personality.