Absolute beginners look around by turning around. Later on, they discover the key for looking around with the mouse while flying straight (it's "c" for me).
Nevertheless, players usually dive towards a target 3 km ahead and 1 km low instead of staying high right till they really engage, 1-1.5 km away from the target. It's subconscious and you really shouldn't do it. Losing energy is one disadvantage, going to a less favourable position in case the target is killed early is another reason. You also become more vulnerable and a more likely target for other reds below. Finally, you announce your intention, warn your prey. If you stay high, he might conclude you don't want to engage him and might engage some blue plane. If you dive, he'll likely be aware and attempt to survive your attack.
This thing about not announcing your intentions is important on domination maps as well; you can capture airfields much easier if you don't announce your intent early. Never approach a defended airfield by flying straight, low or maybe even slow with lowered landing gear, parallel to the runway. Instead, pretend to be in air combat and approach the runway from an atypical direction. Shoot a bit if you have tracers. Lower the landing gear as late as possible, slow down with landing flaps, retract landing flaps before touchdown to avoid most of the ground effect and then touch down, only seconds after beginning to announce your intention. These few seconds are often the difference between airfield neutralization or not, airfield capture or mere neutralization or survival after capture or no survival.
Dive bombers with a suitable landing gear (no A-36 or B7A2) and dive bomber-typical dive brakes are particularly well-suited for this; simply dive, then capture. Hardly anyone expects someone flying at 2 km altitude to capture the airfield within 10 seconds.