The Brazilian became the most expensive player in history when he signed from Barcelona in the summer and was joined at the Parc des Princes by Mbappe, who has joined on an initial loan from Monaco.
The pair have hit it off immediately with PSG top of Ligue 1 with a perfect record of five wins from five
And the 18-year-old forward says it is an "amazing experience" to play alongside a player of Neymar's calibre.
"Playing with Neymar is amazing," Mbappe said. "PSG have a great team, they play good football and help the attacking players. I'll watch and listen and try to learn as much as I can to improve on the qualities I already have."
Mbappe scored on his debut last weekend as PSG thrashed Metz 5-1 and will be hoping for more as they face Lyon at the Parc des Princes on Sunday.