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 ? 
Since only a few online and there is no offline store that accepts bitcoin here in our country,I just convert my bitcoin to our local fiat,it is easy to convert because we have a legit online bitcoin exchange here,but of course I want to buy online using bitcoin,and no I do not buy drugs with my bitcoin because I'm not into this .