As you leave the customs hall, Burger King is to your left and Costa Coffee to your right. There are always meeters and greeters with name boards outside the arrivals exit within the terminal.
The car rental desks have all been moved to a 'village' just off the airport since 8 May, connected by a free shuttle bus. You could wait there .... or maybe ask the person meeting you to come to the reception of the Radisson Blu hotel next to the terminal building (though there may be an access charge for the car) or to another of the hotels near the terminal ... I believe there are shuttles to the Hilton, the Holiday Inn Express and the Premier Inn.