Met a Stranger Friend

After Michael, Bill and Henry has lunch, they walked back home. On the way, Henry met someone who seemed like his friend and chatted with the personfor about an hour. Michael and Bill were stunned at the way Michael talked and also the appearance of the stranger. 100% sure ly that stranger don't know henry . An hour later, Henry came back so
Bill asked him:' who is him?'
Henry replied: ' I don't know."
Bill asked him : 'then why u talk to him?'
Henry replied: ' no idea but he looks like my friend! ' XD