To acquire NFTs, you need to recharge your wallet.
Decide on the sum you would like to spend. It is up to you. Next, choose a platform to use for getting crypto. For instance, you can go for Coinbase or Binance. Meanwhile, in this guide, we will focus on MetaMask for it is the easiest to start with.
Launch the MetaMask browser extension and you'll see "buy" and "swap" features on the main screen:
Click this button to proceed to the list of trustworthy platforms where you can purchase the most popular cryptocurrencies. Different networks and payment methods are available. Options depend on your region. Choose a platform that features currencies and payment methods that fit you. Conduct the payment and see the funds in your MetaMask wallet.
Click this button to trade your funds for a wide range of tokens directly in-app. Swapping via MetaMask is an easy way to get specific gaming tokens for those who have a decent amount of the same network's native currency. For example, you need a GHST token to play Polygon-based Aavegotchi. Given you have some MATIC (the native currency for the Polygon network) in your Metamask wallet, you can swap MATIC for GHST directly in-app.
Remember that buying, transferring, and swapping currencies are transactions that require gas fees. If you are not familiar with this term, check this article.