Quick move got ya runnin'?
There are plenty of people out playing chess who are amazing at blitz! When they have to play long games they sometimes try to make a none blitz playing player make fast moves like him/her. DON'T let them! if you do you will probably lose. What you should do is go and take your sweet little time (unless you don't have much left) to be sure about your moves and plan for tactics. If anything, if your not a blitz player, try and avoid playing blitz or with blitz players. I worst comes to worst and this happens just take my advice and you'll be fine!