Also during traffic (well at least me) I always shift to N (neutral) and if there is no slope then I just release my foot from the brake pedal. If there is a slope then I use the hand break so it does not move. Never use P to replace the hand break since it puts stress to the automatic tranny. Only use P when you truly are parking and getting out of the car, but at the same time also use the hand break. For most cases putting it in D is enough. Other manufacturers have gimmicks calling the last gear OVERDRIVE or O/D always have that activated regardless so you have access to the final gear. For Honda wala silang O/D button, if you put it into D thats already as if there is O/D, choose D3 if you want to drive up to 3rd gear only. 2 locks the gear to 2nd gear normally use for engine breaking to reduce stress from the foot break when climbing down. L locks the tranny to 1st gear good for steep climbs so there is power. For city driving though you only really need to use D, N, R and P.