To get started with trading or market making on Perp v2, you'll need to connect an Ethereum wallet.
Click on the 'Connect' button either on the top left-hand corner above the sidebar or on the middle of the home page.
You'll then select between different wallets. MetaMask, Wallet Connect, Coinbase Wallet and Torus are all supported. Check out this guide for alternatives to MetaMask, that are also compatible with Perp v2.
Select your wallet type and confirm:
Once you've connected your wallet to the Perp v2 app, part of your address will be displayed above the sidebar and next to it the Optimism logo is shown.
If your wallet is not on the Optimism network, you'll see a button that that says 'Switch for me'. Click on that button, then confirm by choosing 'Switch network' in your wallet.
To disconnect your wallet so you can connect another wallet (for example, you want to isolate the margin of two positions in different accounts), go to your address on the top left-hand side and then select 'Disconnect' from the drop-down menu: