The first step in creating a stronger impression is to stop wearing clothes that make you look physically weaker.
All the colors in your outfit should complement each other.
If you’re not sure how to coordinate colors, an easy way to avoid clashes is to use the one-color trick.
Try and find t-shirts that fit somewhat tight around the arm. I’m talking about a jacket — and not your everyday windbreaker.
(You can also roll them up a bit, James Dean style, if you like that look. A little goes a long way.) Skinny jeans and tapered legs can make your legs look like sticks. I’m talking about a suit jacket, sports coat, or blazer. Most of these jackets have padding that create a sharper edge where your shoulder normally starts to slump down.
You can find collared sweaters and cardigans in many different models, both classic and modern.