As a general rule of thumb you want to go dressed 1 step up from what you expect their normal clothing to be like. So for example most game studios have a casual clothing policie so smart jeans with a dress shirt and some smart shoes / boots is usually good enough If you go dressed too smart, i.e in a suit for example you…
To top off a clean white tee and jeans combo, I'd suggest adding a casual open blazer. That might be a little too 'metro' for some guys, but it gives an outfit some completeness and puts it all together, IMO. Here's an example on a girl, but the style for men is similar: Of course, it's important to be yourself and your…