What is required every time you plan to enter traffic?

Using your turn signal every time you plan to enter traffic is essential for safe riding and following traffic laws. The turn signal indicates your intention to other drivers and road users, which helps prevent accidents by providing clear communication on your movements. By signaling, you alert vehicles and pedestrians nearby that you are about to change your path or merge into traffic, allowing them to react accordingly. This is a critical aspect of maintaining safety on the road, especially in busy or complex traffic situations.

The other options, while they may have some relevance in certain contexts, do not fulfill the critical communication role that turn signals serve when entering traffic. Speeding up could create danger rather than safety, looking for pedestrians is important but does not convey your intended actions to others, and waving hello is not a relevant or effective method of communication in traffic scenarios.