Sometimes you will see another player calling for help in chat, in the form of “rez pls at [somethingsomething waypoint]”, or “champ up at [somethingsomething waypoint]”.
For those of us who do not know where every waypoint is on a given map, instead of hovering the mouse cursor over every waypoint on the map to find the right place you can click on the linked location in the chat window itself (gold-coloured link iirc) and your view will immediately switch over to the map, centered on that location.
Cheers