I am just like you as far as the shy thing goes. Just get brave and be like Hey I'm Meliss! Just answer their questions to the best of your ability add as much to your answers as possible and ask questions if you need to. If you come across as genuinely interested they will love you. Knowing me if I was rushing I would tell them I'm kinda shy and just open up to them thats just my nature. If you do that they probably will do everything they can to make you feel comfortable. If I was the rusher and a rushee told me that I would make them feel comfortable and everything. Just contribute where you can in a conversation and just blow em' away!
Good Luck!