Liquidity on a decentralized exchange (DEX) depends on having enough trading pairs with enough liquidity to enable participants to buy or sell assets quickly and easily. Unlike centralized exchanges, where liquidity is usually provided by large market participants, on decentralized exchanges, liquidity can be provided by many participants who contribute their assets to liquidity pools.

Adding liquidity to a decentralized exchange (DEX) is a process that involves providing funds to a liquidity pool in exchange for tokens that represent your share of the pool. Here are the general steps to add liquidity to a DEX:

1. Choose a DEX: There are several DEXs available in the market such as Uniswap, SushiSwap, Curve, etc. Choose the one that supports the tokens you want to provide liquidity for.

2. Connect your wallet: Connect your digital wallet to the DEX by using the supported wallet options, such as MetaMask, WalletConnect, etc.

3. Navigate to the liquidity pool: Once you have connected your wallet, navigate to the liquidity pool page on the DEX.

4. Select the tokens: Choose the tokens you want to provide liquidity for. The tokens should have a trading pair on the DEX.

5. Input the amount: Input the amount of each token you want to contribute to the pool. The DEX will automatically calculate the exchange rate and the number of tokens you will receive in return.

6. Approve the transaction: Once you have confirmed the details, approve the transaction. You will need to pay a small amount of gas fees for the transaction to be processed.

7. Receive your tokens: After the transaction is confirmed, you will receive tokens that represent your share of the liquidity pool. These tokens can be used to withdraw your share of the liquidity pool at any time.

Overall, adding liquidity to a DEX is a straightforward process, and it can help you earn passive income from trading fees on the platform. However, it's important to understand the risks involved, such as impermanent loss, before adding liquidity to a pool.