1- Stand straight up and grab two opposing high pulley cables to each side.
2- Lean your torso a bit forward, with both hands to the sides at shoulder level, slightly bent at the elbows, this is your starting position.
3- Now keep your body fixed and pull the cables together in front of you, until your wrists touch.
4- Return to the starting position until chest muscles are stretched, and repeat.
Tips and Advices:
1- You should keep your elbows slightly bent during the exercise to prevent the stress on the biceps.
2- Make sure that your entire body remains stationary though out the exercise and move only arms.
3- Crossing the arms increases the focus on the sternal head of the pectoralis muscle.
Variation:
1- Lying Dumbbell Fly