You will want to download either Trust Wallet (for your smartphone) or MetaMask (for your browser in the form of an extension). Once you have downloaded either one of these you will have to add the Binance Smart Chain (BSC) Network to your network-list. A tutorial on how to do this can be found HERE
Use an exchange such as Binance to purchase Bep20 Smartchain BNB, after purchase withdraw the tokens from the exchange into your MetaMask or Trust Wallet via the address given to your wallet (Starts in 0x)
Click here to be redirected to PancakeSwap where you can connect you MetaMask/TrustWallet and exchange your BNB for $BABYMON. If you simply just want the contract address input
0X9404C649A833A3907F3F24ED1B4D6D96D755A9C3If you receive an error to do with the output first of all increase your slippage, and also make sure that the $BABYMON you get in return for your BNB ends in 0 and is not a decimal etc