Step 1
When you start a new game, on the right side there is a list of all races in the game. Clicking on the icon of any of these races will bring up another screen. (screenshot below) Lets start with the tantik and click on their icon:

Step 2
Now lets make it so that when we meet them they will be friendly. To do so , click on the arrow button to the right of where it says relations.

Repeat steps 1 and 2 with each race until you are satisfied.
Well that is all there is to it. Enjoy !