Loop a resistance band on a fixed pole or a similar object at a low height and grip it with slightly narrower than shoulder-width distance.
At the starting position, make sure that there is enough resistance on the band when your arms are fully extended.
Breath in and pull the band with both hands till the band touches your torso.
At the end range of the movement, Squeeze your shoulder blades together.
Extend your arms in a controlled manner and repeat the movement.