The easiest way to learn chess is to open up the e-pawn (e4).
Whenever possible, make a good developing move that threatens something.
Develop Knights before Bishops.
Pick the most suitable square for a piece and develop it there once and for all.
Make one or two or the most three Pawn moves in the opening, not more.
Do not bring the Queen out too early.
Castle early otherwise the King may become stranded in the center.
Play to get control of the center.
Always try to maintain at least one Pawn in the center.
Do not sacrifice without a clear and adequate reason.
Don't block either center Pawn with your pieces.
Develop your pieces towards the center as quickly as possible in conformity with the principle of cooperation.
Don't block the path of the development of your pieces.
Don't move the same piece twice in the opening.
Don't exchange a developed piece with an undeveloped one.
Don't move any of those pawns in front of your castled King unless necessary.
Don't exchange pieces without good reason.
Don't make careless Pawn moves.
Don't capture a center Pawn free with a piece (Knight) especially while your King is still in the center.
Don't try at any cost to win material to the detriment of your development.
Don't just attack while your King is not safely tucked or you still have undeveloped pieces.
Don't play "automatic" chess.
Don't ignore your opponent's move.
Always play with confidence. Rely on your ability. Play and concentrate on your game, not the player (opponent).

Portia Chess Club