Download phantom or your wallet of choice from the app store or google play store for free.
Get some sol
If you don’t have any sol, you can buy directly on phantom, transfer from another wallet, or buy on another exchange and send it to your wallet.
Head to phantom
open Phantom. Connect your wallet. Paste the $fis token address into phantom, select $fis, and confirm. When phantom prompts you for a wallet signature, sign.