You are in a deadly face off with your enemy in a game of coin flip! The coin starts with heads facing up

The enemy has already made a move and the state of the coin has been modified (or not)!

You, a brave warrior must make a choice. To either flip the coin or keep it as it is

Neither your enemy nor you can see the coin

If after your move, the coin has tails, then you survive, or else... you shall be missed by your loved ones