Just replacing your hoodie with a tahirt would do a lot. The next steps are replace sneakers with more adult shoes (Eccos for example, or another brown shoe) an

Just replacing your hoodie with a tahirt would do a lot. The next steps are replace sneakers with more adult shoes (Eccos for example, or another brown shoe) and replace the t-shirts with button shirts and undershirts. Honestly though I'm 40 and I wear jeans and a t-shirt. I've been working as a developer for 20 years. When I started the jeans and a t-shirt thing was not accepted like it is now.