As pointed out above, it's very easy.

You will arrive in the non-Schengen area of AMS and proceed to the gate to where your flight will depart. Just look at the screens and find your departure gate and follow the signs. Between lounge 2 and lounge 1 you will go through passport control and security, EU and non-EU passport holders get separate lines. If you are in a rush there is a dedicated tight connection queue, however, make sure your flight is listed on the screen should you wish to go through this lane.

Find your gate and board when announced. It's all quite simple.