Pam and Bob have never met before. They do not know each other. They meet one day at work. “Hi,” says Pam. “I’m Pam.”
“Hello,” says Bob. “I’m Bob.” “It’s nice to meet you.”
Bob holds out his right hand. Pam shakes his hand. This is a common way for strangers or friends to greet each other.
Kim and Kris are sisters. Kim lives in New York. Kris lives in Texas. They live hundreds of miles apart. They do not see each other often.
Kris flies to New York to visit Kim. Kris gets off the airplane and gives Kim a big hug. This is a common way for close friends or family members to greet each other.