My coworker asked me if I want to go to a bar with all my other coworkers tonight and he really wanted me to go. I'm so shy that I've been working with my other coworkers for three years and all they know is my name and my age. That's how painfully quiet I am. However, I tend to let loose and be more outgoing when I'm outside of work and responsibility. The only reason I don't want to go tonight is because I don't want to make it awkward for anyone else. I want them all to have a good time and I feel like I would just be interfering with that. I can't help but think whenever people ask me out to go somewhere it's like they're doing charity work and it makes me feel horrible. I don't want them to think that I won't go because I'm too cool for them or anything because that's definitely not the case. What should I do?