At times a race you have contact with might threaten you.
If this happens don't be scared, all you have to do is humely
pay tribute to them and then don't talk to them unless they
talk to you for at least 10 turns. If you are trying to win
a non aggression pact or an alliance or a trade agreement,
first try reasoning then if they do not accept, offer them
a gift of tribute, then beg or plead for what you want.