When he keeps aloof and tries to provoke a battle, he is anxious for the other side to advance.
其所居易者，利也；
If his place of encampment is easy of access, he is tendering a bait.
众树动者，来也；众草多障者，疑也；
Movement amongst the trees of a forest shows that the enemy is advancing. The appearance of a number of screens in the midst of thick grass means that the enemy wants to make us suspicious.
鸟起者，伏也；兽骇者，覆也；
The rising of birds in their flight is the sign of an ambuscade. Startled beasts indicate that a sudden attack is coming.
尘高而锐者，车来也；卑而广者，徒来也；散而条达者，樵采也；少而往来者，营军也；
When there is dust rising in a high column, it is the sign of chariots advancing; when the dust is low, but spread over a wide area, it betokens the approach of infantry. When it branches out in different directions, it shows that parties have been sent to collect firewood. A few clouds of dust moving to and fro signify that the army is encamping.