So people have always told me I look angry when I'm focusing, and I figured "Yeah I look like every other engineer when they're focusing".
Today a friend walked by a cafe where I was working. He saw me, sent a pic and asked me if everything was OK. I looked furious, which I don't understand, because I was being super productive and am a reasonably happy person.
Who else looks like they're going to war, when they're writing code?
This is a huge reason why I support WFH policies and personally take advantage of them. I don't personally feel the need to "fix" myself; doing so would involve putting on an artifice in order to placate people whose impression of me is founded on incorrect assumptions. It would make me feel like I was walking on eggshells, and it would take up precious mental bandwidth which would be better spent on the work problem at hand.
WFH means management of my facial expression is one less thing I have to worry about, since people can only see my Zoom avatar at best, and usually only see the section of the laptop screen that I'm sharing. Counter to what anti-WFH advocates say, it actually makes me more likely to form close bonds with my coworkers, since they're less likely to jump to conclusions about my demeanor and personality if they aren't privy to my facial expression.