Read this sentence from the passage "First Lady Michelle Obama's Remarks in Town Hall with Youth of Northern Ireland."
"We did our best to be open to others; to give everyone we met a fair shake, no matter who they were or where they came from."
What is the meaning of the idiom "give everyone we met a fair shake"?
to listen to everyone's problems
to treat everyone equally
to become friends with everyone
to greet everyone enthusiastically