Coinbase is the fastest way to get bitcoins. Coinbase has exchange more than 50 Billion dollars They support 32 countries.
Go to their website coinbase.com and set up an account. This will take 5-10 min. Before buying Cryptocoins confirm your account. Confirm your account using your email address and set up 2-Step verification to have the best security possible. You can do this by receiving a code by text message of using google authenticator app.
Try to use google authentificator since is more secure. You will need to download the google app to do this. You will need to verify your identity by submitting a picture ID to start buying and trading this might take a day. Coinbase website is very user friendly. The downside is the frees. You get charged to buy and sell. But is a great place to get started.