Upvote:2
You can just meet here are terminal 1 arrivals following the steps here to transfer between terminals:
Arrivée terminal 2E – After the automatic doors, out of the luggage delivery room, turn left, go straight on. At the end of the terminal, take the escalator up.
Follow the indications ″Terminal 1″ & ″CDGVAL″.
Walk through the pedestrian walkway.
Moving sidewalks end while entering the lobby of the TGV-RER railway station.
Take the escalator down to the CDGVAL station.
Get on the CDGVAL shuttle train.
At the end of the platform, walk down the travelator.
Head for arrivals.