Wearing deeper sleeveless will expose the shoulder thereby making the arms appear longer and slimmer.
#2 Go For Cool Boxy Shapes:
Boxy clothes create an angular shape, which means it's a square on the top of your body. So the garment doesn't hug you in the waist. It creates the illusion of smaller arms and they are so much in trend right now.
#3 Try Butterfly Cuts:
Butterfly cuts are super short sleeves so they are a kind of sleeveless without being one. The arms are visible with only the right amount of skin being shown.
#4 Go For A Flattering Neckline:
Arms and Neckline fall in the same horizontal line, so it's always better that the neckline should grab all attention instead of the arms. Try V- necks as it creates an illusion of a longer neck and it will also highlight the collarbone. One can also go for a button down shirt.
#5 Wear Accessories On Wrist:
Wearing accessories like thick handcuffs and bands will make the arms look slimmer and it will grab more attention than the arm itself.