For the first time in maybe my whole life (and I'm in my late 30's...), I work in a job were I have gotten more insight into how I come across to others, and how others perceive me, in the past year than I did all of the years prior. It's a tight-knit team atmosphere, with lots of more extroverted people, higher stress environment, and a lot lower professional 'filter' than in corporations/ office environments (where I previously worked, and where super honest personality feedback didn't really occur - or maybe, flareups simply didn't happen). It's more like a high school or college environment, tbh -- which has its positives and negatives.
Anyhow, so yeah, I have learned how I can come across. Body language I think is a major thing for me, and facial expressions -- my not realizing how my body language might come across, or simply the fact that I realized I naturally kind of suck at genuine customer service -- i.e. being nice/friendly to everyone, no matter whether I think they're spewing a bunch of b.s. or not -- so it's taken time for me to try to reframe what I'm 'supposed' to be doing -- which is getting over myself and what *I* may think, and just giving every customer who comes in as positive an experience as I can.
Bottom line is, I realize now that I can come across as downright *unpleasant* to people, if I'm not careful, and I can project quite a 'bite'/displeasure, even if it's a more rare occurrence, which I hadn't realized I was capable of. So I've really been trying to become more aware of my body language, tone, and facial expressions. Facial expressions is huge -- as sometimes even if everything is perfectly ok for me, people may think it's not by my face. So I'm just deliberately trying to smile more/put on a pleasant face. I hadn't realized that before working in customer service, as growing up I had been termed 'sweet'.