Weather

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 to do a travel to a city in the world, that would be his destiny? The spectator names Paris 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 weather portal with the exactly city named.