Question about Bedside Manner

I am a student about to enter a nursing program, and I am worried about my bedside manner. Most of my classmates are outgoing and always friendly, while I am more reserved and somewhat socially awkward. Sometimes I feel I say the wrong things and unintentionally offend people. I also feel weird touching people, such as a sympathetic pat on the shoulder. I have actually practiced this with my family members without them knowing I was doing so, and each time it felt so unnatural and/or timing and placement of my hand was off. I feel that a big part of nursing is making the patients feel comfortable, being caring and showing compassion. I do care about and want to help people, but I am shy and don't always show it. I was wondering if this is something I will "learn" in the nursing program or if maybe I should think about working in the OR, where I don't have to socially interact with patients.