After the Vietnam War ended, immigration by Vietnamese refugees skyrocketed. Also, American soldiers began bringing home Laotian brides from the country of Laos, called Hmong. This is why the United States has a large Hmong population in the Midwest.
raise hand in a friendly manner, wave, force a smile, nod and make eye contact for a split-second before purposefully making themselves busy with something else to avoid beginning conversation and real human connection and interaction