Observe men in your industry if you are unsure what's appropriate or are considering changing your look. If you choose to wear other jewelry, be conservative. Removing earrings is safest. For conservative industries, don't wear earrings. Observe other men in your industry to see what is acceptable.
Women can wear casual pants or skirts.
Neither should be tight. If you are pursuing a conservative industry and are in doubt, observe well dressed women in your industry on the job, at career fairs, at information sessions, etc. Skirt lengths come and go. Before choosing a skirt to wear, sit down in it facing a mirror. Ask yourself whether it will be distracting or reinforce your image as a person who looks appropriate for a business environment or gathering.