All “trade” actions take precedence over any other card actions and must take place before any “buy” option. For example, if the first player is dealt the J♠ and the second player is dealt the 9♦, the second player must execute the trade first. If the J♠ is taken in the trade, the player must act on the Black Jack rule. Similarly, if you must trade with a 3, you then have the option to sell that three.
