In some countries bitcoin cannot be use to buy Real stuffs like food clothes and other goods and services but even though bitcoin can be used in plenty of ways mostly in the cyberworld it is used in online markets like Game Credits, Gadgets some use it in the dark webs to purchase weeds,drugs. Others are trading it to a different crypto-currency or exchanging to dollars, so how to you use it ? 
If you cant directly spend your bitcoin because its not still available in your country you could still always exchange your bitcoin to your local fiat since these way is the common thing that most people do because we all know that bitcoins adoption in not too spread throughout the world that's why we would exchange it to fiat on our local wallet service provider.