To give someone a Devil Fruit in Blox Fruits, you can either drop it or trade it. If you have already stored the fruit, you cannot drop it. Make sure you have the fruit in your inventory before attempting to give it away.
Once you have the fruit, approach the player you want to give it to. Open your inventory, select the Devil Fruit, and choose the option to drop it. The other player can then pick it up from the ground.
Alternatively, you can trade the Devil Fruit. Find a trading NPC like the dealer in Middle Town. Initiate the trade and select the Devil Fruit from your inventory. The other player must also have an item to trade.
Another method is to buy the fruit from NPCs like Zioles in the first sea. Use in-game currency to purchase the fruit and then trade or give it to the player.
These methods ensure you can easily give a Devil Fruit to another player in Blox Fruits, whether by dropping, trading, or buying it from NPCs.