* If you stand worse:
o Fight, don't just react to threats. Mednis calls passive play "awaiting the undertaker"! It is much harder for the attacker to keep their nerve if the defender has active play, and without counterplay your opponent will just keep building up their position. It used to be said of Alekhine that to beat him you had to win three games - once in the opening, once in the middlegame, and once in the endgame. Make the same be true for you.
o Don't stop looking for your own opportunities. Many games have been lost that could have been drawn or even won (don't I know it!). But also, people resign with a saving move available on the board - they were just going through the motions until resigning, instead of planning their comeback.
o Never give up. There is always hope if you fight. Don't play for one last cheap trap and then resign. Play the move that will make your opponent groan, the move you would hate to see if you had the advantage. Defend with endless determination.
o If your best hope is for your opponent to fall into a trap, then you can play for a swindle, but only when you know you are losing. Otherwise, play good moves, not trappy ones.