Luke 24:15

‘And it came about that while they communed and questioned together, Jesus himself drew near, and went with them.'

But as they were talking together in this way a man caught up with them who was a stranger to them, who began to walk with them. A man walking by himself would always be glad of companionship in view of possible muggers, especially at a time when many strangers were around. We are told immediately that it was Jesus, but to them He was just another Jew who had been in Jerusalem for the feast and was returning home.