User blog comment:XAero/Tipz N Trickz 4 Quar/@comment-4005921-20120905014709

I would remember where the infected would usually hide when trying to ambush you, so when you run into that area, you would either stay away from that side, run in facing with your pistol, or avoid the area completely.

You could also observe the other players in the room, see what they almost always do, see their tricks, ambushes, etc. so when you run and they're one of the infected chasing you, you could predict what they might do.