In order to purchase and hold STARS tokens, you will need a MetaMask wallet. MetaMask is used to store Ethereum and ERC-20 tokens (tokens based on the Ethereum blockchain). It's very user-friendly and easily the most widely-used wallet in crypto.
It's a simple process and shouldn't take more than 5-10 minutes to complete. Here's a guide from the team over at MetaMask: https://metamask.zendesk.com/hc/en-us/articles/360015489531-Getting-Started-With-MetaMask
Alternatively. feel free to take a look at the video below if you'd prefer: