You got some funny replies. I’ll tell you something that actually happened when I worked in pharmacy. It was all women who worked there, so I stood out as a big bald guy with a beard. I was wearing a shirt that looked vaguely military. I was called to work the front and had been in back in a separate area. I didn’t know a patient was in the process of losing it on the person I was replacing. I stepped out really slowly and confidently with a serious look and just stood behind the register I was to take over and listened to what was going on. Thinking to myself “great, another crazy person. I’m done putting up with this treatment. So done.” I guess it showed on my face because she immediately stopped in the middle a string of vile words and said “wha..who…why’s he here?” I was just rotating positions but she thought they called security. It’s always been business casual where I’ve worked, but really it’s just casual because every time I’ve just felt like throwing on an old tie or jacket it causes a stir throughout the whole building. I’d think in a suit you’d get respect anyway. I’d just keep it conservative. I see guys wearing pink and bow ties and loud patterns with matching glasses, it’s hard to take them seriously. You want to look like a detective or secret service guy. Regimental ties. I like a nice watch. I wear a g shock often. After seeing how many famous people wore cheap digital watches with suits, I wore my g shock to work. It’s more about how you move and speak, slow, calm, and sure of yourself, eye contact and you don’t have to smile all the time. Other people notice Americans smile too much when there’s no reason to. Good luck!