Before accepting a request, please double-check the location of where you're about heading to and if it's an unsafe zone, skip the request.
Ensure the face of the reqester matches what is on their profile and ask who they're here for. Once the picture matches the face of the requester, verify the pin on their device with yours before proceeding.
And should there be any doubt in your mind concerning the requester. Politely let the requester know and cancel the request.