The best opening move for 4-4 in backgammon is 24/20(2) 13/9(2). A strong anchor and two builders. Watch it on the board, then read the idea behind it.

The idea behind the move
With 4-4 play 24/20(2) 13/9(2): the back checkers make the 20-point, and two checkers from the 13-point make the 9-point. You get a strong anchor in the back and checkers aimed at the 5-point.
What comes next
The point on the 20 is a comfortable base and gets in your opponent’s way. Now look for the 5- or 4-point with the checkers on the 9- and 8-points.
How to read the move
A move like 24/18 means one checker goes from your 24-point to your 18-point. Points are counted from your side: 24 is the farthest, 1 is the deepest in your home board. “(2)” after a move means you play it with two checkers.