Navigate to any link in the Income Data section

The wallet page in etherscan.io will open

Current balance and dollar value at current exchange rates.

If the wallet owner has purchased an ENS domain (nickname), it will be displayed here. Often this is the same as the wallet owner's nickname or real name. 

Click "Token" to see a list of all ERC-20 tokens stored in the wallet.

To view detailed information about tokens and NFTs, click on the wallet icon to the right of " Token."

To view the NFTs in the wallet, click on NFT Assets or scroll down the page.

Click on any of them to see all the information about that NFT.

At the bottom is the history and analytics of all transactions.

Here you can see all transactions in the wallet history. For example, here you can see that it is a very active wallet and has made 1968 transactions, the last of which occurred three days and 10 hours ago.

On the analytics page, you can see at a glance when the wallet was created, and lots of other useful information.

Wallet investigation with Etherscan