You need a wallet, Phantom is an easy one, after your transfer your funds to your wallet you need to exchange your USDC or SOL to BONK, you can do it in: Jupiter Swap, Orca or Radyum, even in the wallet itself.

You just need to make sure that you are buying the actual Bonk token cause you make see the logo and words but you need to check the original toke address, guess you can find that in their website.

To be honest, you have to make many steps, I recomend you to watch a youtube video to set up your wallet, but the most important thing is to check that the links of the swaps are the good ones, do not intectact with any NFT that someone drops in your wallet.

Check twice everything before purchasing something.

Do not listen to this kind of kids that feel gods because they purchased SOL at $8 or $20 USD, the bullrun is coming so no matter if you buy now, things are likely to go up when we are close to the bitcoin halving, I would also suggest $PYTH and $BONK depending of your risk lvl.