There are quite a lot of SIDs and STARs so it would be advisable to know your airways routing beforehand. That way you can study the appropriate arrival or departure plate ahead of time.
AMS
If you're using the executive handling terminal, expect to be vectored for an approach to the 'main landing runway' broadcast on the ATIS, followed by a visual break-off to land on 04 or 22. When I was there in April, we flew an ILS to 36R and then turned right on short final to land on 04. Some years ago I flew an ILS to 27 and landed on 22.
CDG
Be prepared for a lot of French on the radio; ATC talk to the locals in French, so Situational Awareness can be an issue.
Bottom line for both airports - study charts before you go and stay alert and flexible
Enjoy!