“Deception” is in badminton mostly used for techniques, thus movements and strokes, that show an other intention then really being in mind.

Deception by strokes are sliced strokes, double strokes, changing the direction of the racket head, turning the racket head to the other side during the stroke, a later stroke than expected.

Deception by body movements are turning the shoulders in an deceptive direction, moving the body in a particular direction, making a jump for not a smash, making a step in a not meant direction. These movements can be combined with deceptive strokes.

Strategically is deception usable too. That is like showing fatigued, then going attacking unexpectedly. Or steering to a smashable shuttle, then staying placing instead.

The most important advantage of deception is eventually the later seeing of the shuttle by the opponent and the necessity to wait with a reaction till the shuttle is really seen.

Handling an opponent's deception can by keeping attention to the right objects. By an open mind the whole play is seen, and within that image, attention is directed to the shuttle, as being the object to be reacted to. The shuttle is then seen clearly, the rest vaguer.

Handling deception is also done by bearing in mind the goal during play: that the shuttle is to be placed difficultly for the opponent. So, directing the attention not to where the shuttle would be placed by the opponent, but where that returning shuttle next could be placed to him. Reactions then are not directed to go to the shuttle, but to place the next stroke. Attention is taken away from the opponent's movements on which could be reacted.