a. Sends (Transfers):

What it is: Sending tokens (cryptocurrency) from one wallet address to another.

Example: Transferring ETH from your wallet to a friend’s wallet.

Use case: Paying for goods or services, gifting, or moving tokens between personal wallets.

How it works: A transaction is signed with your private key and broadcast to the blockchain. Once confirmed, the balance is updated.

b. Swaps:

What it is: Exchanging one type of cryptocurrency or token for another (e.g., ETH to USDT).

Example: Using a decentralized exchange (DEX) like Uniswap to swap Ethereum for DAI.

Use case: Converting one asset into another for liquidity, trading, or investment purposes.

How it works: Swaps use smart contracts on decentralized exchanges to facilitate token exchanges without the need for centralized platforms.

c. Smart Contract Interactions:

What it is: Interacting with a smart contract on the blockchain, such as executing a predefined function.

Example: Staking tokens in a DeFi protocol, minting an NFT, or borrowing assets from a DeFi platform.

Use case: Automating transactions without intermediaries, such as participating in decentralized finance (DeFi), gaming, or NFTs.

How it works: You send a transaction that calls a specific function in a smart contract, which is executed according to the contract's predefined logic.