God, the heat. George was under the impression that one couldn't feel pain in death but apparently that expectation was quashed too. The moment the others stopped the talk about the bridge was the moment he became uncomfortable. It was something that he had grown used to in life: that he was not, nor would ever be, part of a group. In fact he was sure that Lily had already spread the word of what a monster he was. Not, on a logical point of view, that he could blame her.
As soon as L pointed out the bridge George looked at it, also noticing the hot molten lava below. Perhaps it was the sweltering heat on a man who in life had a high blood pressure. Perhaps it was because George was absolutely sure that Lilly had plans to push him over the edge into the lava. Or maybe part of him hoped that if he crossed at once, without the extra weight of his teammates aboard, that the bridge would have less of a chance of breaking. Even the heat itself would've been a proper excuse in his eyes.
Either way, like his life, George headed off in death alone. First was the intial testing of the first step. It seemed sturdy enough and George gently tested it with his weight. So far so good. He took another step and noticed the swing which made a giant creak sound as it swung. He cursed internally for not noticing! Stupid, stupid, stupid!
He managed to balance by keeping his left foot towards the farthest left, the right on the farthest right, and one leg infront of the other. With that he began to make his way across.