Eb says: You'll see people holding the weights in front of them when they shrug; don't do this. Keep your arms at your sides, palms in neutral (facing your thighs). Roll your shoulders back.
Still, as tempting as it is to roll one’s eyes and accuse fashion of lazy copy-and-pasting, I find I’m excited about the shrug sweaters. Maybe that’s because whenever something comes “back” into style ...
you can change the target areas of your upper back and traps as well. Don’t forget, the key function of your traps is to stabilise your scapula, not just shrug up and down, and the incline row ...