Effect

The mentalist asks a mobile phone to a spectator, announces that it is going to make a search on internet and once is done, leave the phone on the table
asks the spectator if he had to change his profession, that would be his new job? The spectator names consultant for instance...

Under these conditions, the mentalist ask the spectator to take his mobile phone and look which was the search done
Under such conditions, the spectator will find a search on a job seeking portal with the exactly job named.