Each other player with 4 or more cards in hand reveals a card from his hand. You may reveal a card from your hand. Each revealed card is either trashed, discarded, or put on top of its owner’s deck, your choice.
Players who had 3 or fewer cards in hand when Archer was played do not reveal any cards, but it is always an option for you to do so, because the hand size condition does not apply to you.
You may make a different choice for what happens with each card. The card will go into the Trash or its owners deck or discard pile.