Always lead a trump when your partner has ordered up, or made the trump. If you have no trump, play your best card. Avoid leading the turn-down until at least one round of trumps has been played. If you have left and small one, lead the left and continue with small one if both opponents follow. With any two others, lead smallest, unless equals.
Score four to three in your favor is a position of caution, and consequently your play should be very conservative.
SECOND HAND.
Do not assist too light. This is the most common error in Euchre.
Assist with three trumps.
right and another.[1]
left and another, and outside ace.
Assist with left and another; dependent upon the score,
two trumps and two aces.
ace and another, and outside ace; dependent upon score; always, however, if right is turned.