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They'll need a wallet to receive it. So, they need to be on Hive. Unless they have a Maya wallet, they can have wrapped Leo of sorts. That's all I can think of.

You can do that via Leodex. You will need Arb.ETH for transaction fees and of course, a wallet (Keystore), both for you and the receiver. The LEO will be on Arbitrum network (Arb.LEO)

they would need a keystore and log into Leodex.
you can then buy them Arb.Leo and send to their keystore.
but they own the keys and that Leo could get lost forever if they don't know what they are doing.

I think Uniswap???? still has Eth.Leo but I stay away from that stuff.

Why would you do this?
If they are not on Hive what good what it do them?

You could also just make them a hive account.
Use one of your account creation tokens.

I think there is no way, without a doubt it would be a good option to invest.

Bring them on hive and increase the hive users +1 , then go ahead to send the LEO tokens to them , it becomes a win win situation

Will dash work?