Here are the steps to buy Ethereum:

1. Choose a cryptocurrency exchange: The first step to buying Ethereum is to choose a reputable cryptocurrency exchange. Popular exchanges include Coinbase, Binance, Kraken, and Gemini.
2. Set up an account: Once you’ve chosen an exchange, you’ll need to create an account by providing your personal information and verifying your identity.
3. Add funds: After you’ve set up your account, you’ll need to add funds to it. Most exchanges allow you to deposit funds using a bank transfer, credit/debit card, or other cryptocurrency.
4. Buy Ethereum: Once your account is funded, you can use the exchange to buy Ethereum. On most exchanges, you can buy Ethereum directly with your deposited funds or with other cryptocurrencies.
5. Store your Ethereum: After you’ve bought Ethereum, it’s important to store it securely. You can store Ethereum in a digital wallet, such as MyEtherWallet, or on the exchange itself. If you plan to hold a significant amount of Ethereum, it’s recommended to use a hardware wallet, such as Trezor or Ledger, for maximum security.

Remember, buying Ethereum carries risks and it’s important to do your own research and understand the risks before investing. It’s also important to use a reputable exchange and take steps to protect your investment, such as storing your Ethereum securely and enabling two-factor authentication on your exchange account.