Sound really matters as it does with just about every system in Dark And Darker Gold. Players looking for Blue Headstones need to be constantly listening for its audio cues, for footsteps mixed in with the rumbling of the Headstone, the sounds of Wizard spells being charged up, or for the ambient noise an Escape Portal makes.
And finally, what is the overall best method for players to secure an Exit Portal in every game? Well, in general, a lot of players naturally gravitated towards the practice of 'running to the center of the circle' to increase their chances of finding uncontested Blue Headstones. And, while this is a great method for confident squads of three who are comfortable with the PvP and the revive system, it's usually not the best method for solo players or beginners.
Rather, the tactic that has the best mix of safety and success for both solo and squad players has to be sticking around the 'edge' of the circle at all times. There are a couple of key reasons why this tactic is the most surefire one: Players rarely run into the zone at all in general, even though the constant damage it deals is pretty forgiving.
Therefore, eagle-eyed players who spot a Blue Headstone out in the zone can easily just chug a Health Potion, run in there, and tank the damage while they spawn an easy Extract. These Headstones in the zone area are almost always uncontested anyway. Sticking around the edge of the circle avoids all the players who ran towards the center as soon as they spawned, which usually only leaves other players employing this strategy or players who are escaping from the zone with buying Dark And Darker Gold low health or their guards down.