Read all the details how to setup your waller here https://medium.com/chainapsis/how-to-use-keplr-wallet-40afc80907f6 .

Another guide https://johnniecosmos.medium.com/how-to-delegate-your-akt-via-keplr-and-cosmostation-wallets-a70bbc743617 .

Honestly I'll never use that wallet before and I don't have idea about that AKT tokens . but you can find different answer now if you search in browser.