Let's face it, walking around campus with headphones and sunglasses on doesn't exactly make people want to approach you. I get it, though. I'm a shy and reserved person, so this behaviour was an instinct, but during my last semester, I started to learn that opening myself up more allowed me to make new friends and give me new experiences. It also helped boost my confidence! Try experimenting with being more approachable, and see the opportunities it opens.