How do I know when it’s alright to leave my shirt tails out? For instance on casual Fridays, can I leave my shirt out or do I have to tuck it in? Same when meeting up with my fiancée’s parents, who are kind of casual, but also old-fashioned. On a buisness trip, can I relax and leave my shirt out after work hours when hanging with colleagues, or not? Some take their shirt out, some leave it in.
–Peter, Providence, RI