If you stop at a pedestrian crossing and pedestrians refuse to cross, what should you do?

When you encounter a situation at a pedestrian crossing where pedestrians are present but choose not to cross, the appropriate action is to take no further measures to prompt them. The correct response is to remain in your stopped position and wait patiently, which ensures the safety of the pedestrians.

Waving them across could create confusion or pressure them into crossing when they may not feel ready, and trying to call them after checking your mirror could also distract them or obstruct their judgment regarding traffic. Likewise, sounding your horn is generally considered inappropriate and could intimidate pedestrians or cause them to feel rushed, which is not a safe scenario. Keeping the vehicle stationary and allowing pedestrians to decide when they wish to cross is crucial for their safety and reinforces the driver's responsibility to yield to pedestrians. Hence, none of the listed actions correspond to the appropriate conduct in this situation.