This is an interactive guide to tell whether or not a new guest is a white person, according to new research.
Researchers at the University of Illinois studied the behavior of more than 1,400 participants across 20 countries.
They discovered that people in Africa and Asia were the most likely to say the new host was white, while in the United States the findings were similar.
The study, published Monday in the journal PLOS ONE, also found that people tend to associate white hosts with positive traits.
Researchers believe that this may be because white people are often associated with good social skills and are known for being outgoing and social.