His nose will not grow "now" because wasn't it where his nose grew immediately once he lied. So when he says now, but it doesn't, there is a 1-3 second delay of the nose growing because he will have to see. If he thinks it will grow, him saying it will grow now is not a lie, thus not having it grow. However, after the 1-3 second of it not growing, his statement has become a lie thus making it grow
His nose will not grow "now" because wasn't it where his nose grew immediately once he lied. So when he says now, but it doesn't, there is a 1-3 second delay of the nose growing because he will have to see. If he thinks it will grow, him saying it will grow now is not a lie, thus not having it grow. However, after the 1-3 second of it not growing, his statement has become a lie thus making it grow