pretty much the same as swoop - dark coloured suit with a skirt rather than pants. if it's warm & there's a chance you'll take off the jacket, def wear a shirt/top with sleeves. i usually wear a shirt. sheer stockings. heels. littlwe bit of makeup & definitely neat nails.

i wear my hair out but that's because i almost always do anyway.

of course, some of that depends on the type of role or company you're interviewing with.