Before pulling out from a right-side parallel parking space, you must:

Before pulling out from a right-side parallel parking space, it is essential to check for approaching traffic and give a left-turn signal. This is because you are maneuvering your vehicle into the flow of traffic, and signaling a left turn alerts other drivers to your intentions of moving into their lane. It helps ensure your safety, as well as the safety of pedestrians and other vehicles.

Checking for approaching traffic is crucial since there may be vehicles coming up from behind that you cannot see directly from your parked position. Signaling gives drivers a chance to be prepared for your movement, reducing the risk of collisions. Although awareness for pedestrians is important, the primary concern must be on vehicular traffic when exiting a parking space. There is no necessity to rev the engine to get the attention of nearby drivers; instead, using proper signaling and checking traffic suffices.