What is a fair way for the men to toss the coin and decide who gets the coin?

Question

Two men find an old gold coin and want to have a coin toss with it to decide who gets it. The only problem is the coin is heavier on one side so it comes up heads more than tails.

What is a fair way for the men to toss the coin and decide who gets the coin?

Answer 1

They just have to flip it twice. They call the first toss either heads or tails, then the next toss they automatically pick the opposite (ie if one man calls heads on the first flip, he automatically picks tails on the second and vice versa). If they both win one toss (a tie) out of the two, they just have to repeat until one of them wins both tosses.

Answer 2

One man tosses a coin up in the air and while it's in the air he says heads or tails to the other guy and then it lands in his hand and he covers it up so the other guy can't see it and he has to guess if it landed with heads up or tails up