Trying to raise awareness for those who don't know
In short:
You can use BTC to purchase good's or services online and receive payments through it like paypal however BTC rates change so one day you have 0.1 BTC and it could be valued at 30$ the next day that 0.1 BTC could be worth 31$ or 29$ depending on rate changes.
Bitcoin is a irreversible payment once you send it, you can never get it back. So be sure to use a MM or escrow payments if you don't trust the person your trading with.
Information:
Bitcoin uses peer-to-peer technology to operate with no central authority or banks; managing transactions and the issuing of bitcoins is carried out collectively by the network. Bitcoin is open-source; its design is public, nobody owns or controls Bitcoin and everyone can take part. Through many of its unique properties, Bitcoin allows exciting uses that could not be covered by any previous payment system.
To open a bitcoin wallet I recommend you create an account on CoinBase or Blockchain.
BTC rates can be found on Preev