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Rolling for HP

Hit Points and Hit Dice
  Your character's hit points define how tough your character is in combat and other dangerous situations. Your hit points are determined by your Hit Dice (short for Hit Point Dice).   At 1st level, your character has 1 Hit Die, and the die type is determined by your class. You start with hit points equal to the highest roll of that die, as indicated in your class description. (You also add your Constitution modifier, which you'll determine in step 3.) This is also your hit point maximum.
-PHB pg. 12
  Nobody wants to roll on their hit points for their character. Instead of forcing you to keep that one, or letting you reroll on ones, I'm opting for rolling hit points with advantage. Everyone gets two tries and keeps the higher roll. If you roll two ones, then it's your bad day.  

TL;DR ROLL TWICE FOR HIT POINTS AND KEEP THE HIGHER ONE