I certainly hope that nobody will ever find me by following my silt trail! 

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If you've lost a buddy, don't just assume it happened under "normal" circumstances.TSandM:I certainly hope that nobody will ever find me by following my silt trail!![]()
NWGratefulDiver:Do these as part of your one-minute circular scan ...
First thing you do is look up ... chances are if your buddy suddenly turns up missing they are either up in your "blind" spot, or on their way to the surface (intentional or otherwise). If the latter, you can see their silouette in the ambient light for quite a ways.
If you don't see them going up, rise up above the bottom a few feet and scan for bubbles. With a dive light, bubbles are far more reflective than most dive gear, and you'll be able to detect them from a fair distance, even in poor visibility.
If that doesn't turn up anything, check for a silt trail. Keep in mind that in certain parts of the world you may end up following a harbor seal, but most places a silt trail will mean a diver. It may or may not be the one you're looking for ... that will depend on the diver density in the area. But it's often a clue as to the whereabouts of the missing buddy ...
... Bob (Grateful Diver)
The really and truly sneaky buggers position themselves about 5' above and 5' back from you. From their point of view they are nice close buddies. From your point of view they are invisible, unless you do a backroll.jeckyll:And the ones I did lose were always(!) above me... sneaky buggers.
lhunt99:I'm hoping to get some input from those more experienced/educated than I:
My wife and I were discussing our buddy separation plan for an upcoming dive; search for your buddy for 1 minute and if unable to locate, execute a controlled ascent and head for the surface. A debate began about whether or not a safety stop should be executed before surfacing.