You can buy (use PayPal, Debit or Credit Card etc.) bitcoins from either exchanges, or directly from other people via marketplaces. Find accessible exchanges for your country here.
Fill the email and press the button "Generate Invoice". You will get bitcoin address and amount in bitcoins, according to the actual rate from BLOCKCHAIN.INFO.
If you are interested in using Bitcoin to make purchases, but currently do not have a Bitcoin wallet there are some great resources available to help you get started.
Blockchain.info or Bitcoin.org is a really good starting point as they provide some great detailed explanations of not only how to get started with Bitcoin but the benefits of using it for individuals and businesses.
We felt that using Bitcoin as a payment method would be a benefit to our customers for several reasons including: ease of use, increased speed of transactions, global reach and use, removal of restrictions placed by credit card companies and the reduction in fraud capabilities.