Keep it pure. Keep arms bent. Weights should be over the elbows to concentrate more on the chest. This is the opposite of the Supine Dumbbell Flye. Keep your neck in line with your back.
Arms are out to the sides.
Use lighter free weights than you would to do the Supine Dumbbell Flye. Lift your arms. Don't worry about keeping your elbows at shoulder level. You can pull back as far as you want on these. This time your elbow is close to your body.