<b>Conceal the dagger in a smile</b>
You conceal your hostility by assuming outward friendlyness. You ingratiate yourself with enemies, inducing them to trust you. When you have their confidence, you can move against them in secret.
-Sun Tsu

Basic principle ain't the smile- that's just colour rather than substance.
Give a false image and act when your opponent falls for it!

<b>Sacrifice the plum for the peach</b>
When loss is inevitable, sacrifice the part for the benefit of the whole.
-Sun Tsu

<b>Putting fake blossoms on the tree</b>
You dazzle and deceive the eyes of opponents by showy displays.
-Sun Tsu

<b>The cicada sheds its skin</b>
This means leaving behind false appearances created for strategic purposes. Like the cicada shell, the facade remains intact, but the real action is now elsewhere.
-Sun Tsu

<b>Feigning Foolishness</b>
At times, it is better to be foolish and do nothing than to brag about yourself and act recklessly. Be composed and plot secretly, like thunder clouds hiding themselves during winter only to bolt out when the timeis right.
-Sun Tsu

Yet again it's deception- under a coat of foolishness.

<b>Remove the ladder after the ascend</b>
You maneuver enemies into a point of no return by baiting them with what looks like advantages and opportunities.
-Sun Tsu