In the USA, "sexual harassment" is generally defined as behavior or words of a sexual nature that make a person feel uncomfortable. Examples could range from an extreme of physical assault or offering a quid-pro-quo to keep ones job or get a promotion, all the way to telling lewd jokes or stories within earshot of a third party, or making comments or compliments about someone's dress or appearance (even telling a co-worker "you look lovely today" every morning).