Evans said when he was given a staff job at the Sunday Mirror in 2003, he was taken into a room and told he would be discussing "something which was a secret". He said: "It was to show me how to hack a voicemail for the first time. There was a bundle of pages with famous people's names and phone numbers on and they said, 'this is your job, you have to hack and crack the voicemails of famous people'.
"I had been tasked to hack people's phones on a fairly grand scale," Evans said.
He said he met Andy Coulson, the News of the World editor, with whom he discussed phone hacking as a method of getting stories.
Evans said: "I said I had been breaking big exclusive stories cheaply, which was the 'kerching' moment. Big exclusive stories cheaply equals job.
"I said there were two ways of doing that: one was to spend a lot of time doing an investigation, the other was to dial up somebody's phone call lists, work out who they are having relationships with, listen to voicemails ... and you've got something that's going to shift units from supermarket shelves. Andy seemed really pleased."
Coulson denies charges relating to phone hacking and alleged corrupt payments. Seven other defendants deny all charges against them. The trial continues.