The best way to deal with unwanted promotional calls is to get off the line as quickly as possible, the Consumer Council advises. The longer you stay on the line, the more likely you are to get future calls from advertisers, who will see you as 'a talker' who can be engaged for long enough for them to make their pitch. 'They will put out a message to other people saying 'This guy likes to talk',' said Victor Hung Tin-yau, the council's chief research trade practice officer. 'The more you listen, the more you invite people to call.' Phone users who did not want to receive such calls should end the conversation quickly or hang up on a recorded message, he advised. And people receiving junk e-mails should never attempt to unsubscribe, as doing so confirms that the account is active, inviting more junk e-mails.