I suffer from permanent bitch face. I look serious and mildly annoyed when my face is at rest. A few weeks ago I decided to make a conscious effort to smile more while at work. I never liked the idea of smiling for other people. The idea of pretending for the sake of other's comfort always seemed inauthentic and dishonest. I just told myself that I'm not a "bubbly" kind of person. I provide good customer service through expertise, not emotional positivity.