Almost before you know it, the aircraft will be in the air. I strongly recommend that, as a first time traveller, you don't look out of the window at the moment of take off. (Just stare straight ahead). If you don't follow that advice, you might find that your breakfast suddenly reappears ;-)
However, once the aircraft has gained a bit of height, look out of the window and enjoy the view. Then sit back and relax.
Occasionally, during a flight, the captain might announce that some turbulence is expected and require you to wear your seatbelt. Unless you're extremely unlucky, this is usually only a precaution and you'll probably not notice any turbulence at all.
Unlike during take-off, you should be able to look out of the window, without upsetting your stomach, when the plane lands. As soon as the wheels are on the runway, the pilot will 'throw the anchors out'. i.e. expect another 'kick' as the aircraft rapidly decelerates. Then it's another 'bus ride' to the terminal (which is usually far quicker than taxiing for take-off).
Chris