Mastering the wallet as the 'universal key' and understanding the operational logic of Gas fees as the 'fuel' has already established your footing at the threshold of Web3. Your wallet is like a high-performance sports car parked in the garage, idling and ready to go, awaiting only a command.

The problem is—your tank is empty, and your account balance is zero.

How can you turn RMB or USD in your pocket into the 'fare' (such as ETH, USDT, and other assets) that is universally accepted in the blockchain world? This requires a 'gateway,' a channel connecting the real world and the digital universe.

What comes next is the commonly called 'On-Ramp' process in the crypto community—the critical moment to transform from a zero-knowledge observer to a real trader handling actual funds.

**First Step: Obtain Your First Crypto Asset via an Exchange**

**What is the starting point? The 'Exchange Counter' in the decentralized world**

Imagine you're going abroad. What's the first thing you do before boarding? Find a bank or airport foreign exchange window to exchange your local currency for the target country's currency.

Centralized exchanges (CEX) serve as this 'foreign exchange window.' They are the entry hub into the Web3 world, helping traditional finance participants quickly convert assets.

It might sound a bit contradictory, right? Web3 emphasizes decentralization, so why go to a centralized platform at the first stop? This is a common question among newcomers. The simple answer is—since the real world and digital world haven't fully merged yet, converting fiat to crypto currently relies on centralized institutions capable of fiat on-ramps. Unless you mine coins directly or exchange other cryptocurrencies, CEXs are the most convenient bridge.

**Why choose this route?**

The advantages of centralized exchanges are clear. First, they hold fiat accounts, enabling bank transfers and credit card payments—traditional financial methods. Second, they have ample liquidity, offering a wide variety of tokens with quick transactions. Third, their interfaces are relatively user-friendly, making it easier for beginners. In terms of security, large exchanges also have mature risk control systems.

But you should also be aware of the drawbacks. Centralization means the platform controls user assets, with risks of KYC verification and account freezes. Transactions also incur fees. Most importantly, your assets are actually held in the platform's custody, not truly in your wallet.

**How to operate specifically?**

The first step is choosing a platform. There are many options on the market; key factors include security, token variety, fee levels, and deposit/withdrawal support. Once decided, download the app or visit the official website.

The second step is registration and verification. Fill in basic information, complete email and phone verification. Then proceed with KYC by submitting ID and proof of address. This process may take a few hours to several days.

The third step is depositing funds. Link your bank card or select other payment methods to fund your account with fiat currency. Depending on the platform and payment method, there may be an approval period.

The fourth step is trading. On the trading interface, select trading pairs (e.g., RMB to USDT, or USD to ETH), input the amount, confirm the price, and place the order.

The fifth step is withdrawing assets. After trading, the crypto assets will be in your exchange account. If you want to truly control these assets, you need to withdraw them to your own wallet address. Enter the destination address and amount, confirm the withdrawal. Within minutes to hours, the assets will appear in your wallet.

**What should you pay attention to?**

Safety first. Avoid logging into exchanges over public networks, enable two-factor authentication, and keep your email and phone secure. When withdrawing, double-check the address; an incorrect address means assets cannot be recovered.

Next, understand the fees. Transaction fees, withdrawal fees, fiat deposit/withdrawal costs—all should be calculated clearly. Sometimes, the spread itself can be significant.

Finally, be aware of compliance. Different countries have varying regulations on cryptocurrencies. Ensure your operations comply with local laws, and that the exchange is legitimate and licensed.

Once you've completed this step, you've upgraded from 'pocket empty' to 'holder of assets.' The real story is just beginning.