You should go for bright coloured T-shirts that have pictures of former Punk bands. The most popular ones include the Clash or the Ramones. Faded shirts would help your cause even better. T-shirts with pictures or motifs of daggers and skulls are also common in punk style. Make sure the shirts you wear are not too tight, especially during summers. Sleeveless T-shirts will look great if you have tattoos on your arms.
Cuff bracelets, safety pins and anchor pendants are a must for genuine punk look. Chains around the neck will also add to the look. If you are brave enough, get piercings done on your nose, eyebrow or tongue.
Hairstyle is very important for a complete punk look. Mohawk is the most common hairstyle in this regard. Cut your hair short and dye them with colours such as blue or green to complete the look.
The leather effect
Leather pants were very common in the 70s. You can go for T-shirts and black leather pants for a funky rock look. White patent is also another option but it will look more authentic if you scruff it and use safety pins through it. For ladies, using a leather bag or purse will complete the look but make sure it does not look new. It should have some rough texture to it.