Try to sit in similar places in classes, next to people who seem friendly. Ask them some questions, say you forgot a pen or syllabus or whatever...Try to joke around, make some comments about the professor or course or homework or whatever...And if a good conversation starts, don't be afraid to ask for a phone number. Especially as a freshman, it's the only sure way to make nail down the modern college kid! I know, it seems awkward, I felt the same way. But just be open to all of the new people and experiences that have been presented to you. It's changed my life and the way I look at myself, and interactions with others. Don't fear! Everyone is scared in college, but it can also be an incredibly enlightening and fun part of your life. Good luck, I wish you all the luck in the world!