The key here is for the attacker to make the jump as high as possible and thereby gain time needed to finish his shot.

By raising his arm and at the same time changing the angle of his upper torso, the attacker wants the goalkeeper to believe that he will shoot the ball in the nearest corner.

But, at the highest point of his jump there is a sudden change. He lowers his hand and with a flick of the wrist he places the ball beyond the reach of the goalkeeper.

Please note the attackers body positioning, paying attention to the angle of his upper torso, and also note the flick of his wrist and the spin that is put on the ball.