Aiming
There will be a yellow line emanating from your golfing avatar; this shows the course your ball will take upon teeing off. Click the line and hold it to drag your aim around the level, but remember, a straight shot isn't always the best course of action. If you can angle your shot to ricochet from one object to the other, you'll be rewarded combo points for hitting multiple targets.
Targets
On every level, there will be one target with a red flag. This is your primary goal. Hitting it will automatically take you the next level and will activate all other targets in the room. If you hit a red flag target in one shot, it will count as a hole in one. However, some red flags can only be hit in one shot by banking the ball off another object in the room. In the kitchen, try banking from the shelf to the refrigerator, and then to the sandwich on the table.
Club Selection
Club selection on "Fairway to Hell" is just as important for your aim as it is on an actual course. A driver will shoot your ball straight and low to the ground, while high irons will give you increasingly more loft. When deciding on your club, pay attention to potential environmental hazards. If you break a window with your ball, you'll have left the area of play and be penalized one stroke. The same goes for holes in the floor.
Power Meter
The final element to consider when aiming your shot is the amount of power to use. Click the power meter and hold the button until it rises to the amount you want to use for your shot. At the top of the meter is a red section that denotes the most power available, although the accuracy of your aim will be lessened considerably. Also note that too much power increases the chances of the ball bouncing back at you. If this happens, the ball will strike your avatar's groin, giving you mulligan.