How can I use it?

You have to start from the App you want to use. Go to the App you want to use, and look for the ‘connect wallet' option. If you are on a mobile app, you might see a list of wallets to transact with - Look for Okto in that list, or search. If you are not able to find Okto upfront, you might have to look within 'Wallet Connect’ app as its an aggregator of all wallets.

If you are using a desktop app, then you might have the option of a QR code. Display the QR code, and scan the QR code with the Okto app (you will find the camera icon in the top right corner of the app)