Final answer:
To safely pull out from a parallel parking space, check for approaching traffic by using your mirrors and blind spot, and signal your intent to other road users before merging into traffic.
Step-by-step explanation:
Before pulling out from a parallel parking space on the right side of the road, you should check for approaching traffic and make sure it is safe to enter the flow of traffic. This includes checking your rear view mirrors, side mirrors, and blind spot for approaching vehicles, bicycles, and pedestrians. It is important to signal your intent to move into traffic to alert other road users. Only when you are certain there is enough space and time to pull out without causing disruption or danger to the flow of traffic should you do so.
For instance, if you are standing on the sidewalk and you see a bicyclist passing by, in the reference frame of the bicyclist, you would be moving to the left. When observing any traffic including bicycles, cars, or even emergency vehicles like an ambulance, it's essential to consider their position and movement relative to yours.