yup
i think that iis quite easy to pick manipulative people...and to me it is not an uncouscious process....only if it happened once of twice from that specific person.
but...most of the times i see that people do it almost everyday.(the ones that i consider manipulative)...
they do it cause:
-it is their Ego that wants to be in control,and control all people around.they need to feel they are right,and everyone else is wrong...
-it is also a matter of insecurity and self esteem i think.they try to hide it under the manipulative behaviour cause someone who accepts themselves as they are,dont really need to make others do or think as they want us too...
manipulative people are also frequently very selfish and narcisist too...and quite intelligent too....
the best way to deal with them is ignore their comments.ignore their Ego and focus on you.on what makes you happy.

that+s it.