Ok, so you didn't install the scenery... Which version of X Plane did you purchase? The global version or only the Europe/North America version? I don't know how they handle X plane at Steam, so maybe you have to download some extra packages with the scenery for the other continents. And in which aircraft where you? Probably the default 747, or? So you use the combination Shift+9 to get into 3d cockpit view. Then you can navigate around using W, S, A, D. In 2d cockpits you can look around with the arrow keys. To get into the outside view you have to use the combination Shift+8 and then you can again navigate using the arrow keys. But those shortcuts are also all written down in the manual or up in the menu bar under "View".