The “Be Extremely Nice” achievement requires players to share any weapon with another player in The Forest. It is one of the few achievements that players can only get in multiplayer mode.
To share any weapon, a player must combine the metal tray with a weapon (such as axes, bows, and spears). After combining the items, the player must equip the metal tray and have another player interact with it. The achievement will pop after the other player acquires the weapon.
