For a christening in the US, opt for semi-formal attire such as a dress or a skirt and blouse, avoiding anything too revealing or flashy.
For a charity ball, go for formal attire like a floor-length gown or a tailored suit, and consider the theme or dress code of the event when choosing your outfit.
For a race day, choose smart-casual or semi-formal attire, such as a dress with a fascinator or a stylish jumpsuit, and be mindful of the dress code specified by the event organizers.