In blackjack, whether you should hit or stand on 16 depends on the dealer's upcard. If the dealer has a 7 or higher, you should typically hit, as the dealer is likely to have a strong hand. If the dealer has a 2 through 6, it's better to stand, since the dealer is more likely to bust with a low card. In certain situations, like with a pair of 8s or a soft 16, you might want to consider splitting or doubling down. Overall, it's about weighing the dealer's likelihood of busting versus your chances of improving your hand.