Jeff and Randy, the eternal jokers

When I was a kid, I wanted to grow up to be as funny as Jeff and Randy. They always had everybody laughing so hard. They were the MC's for a ward party once and had everyone laughing as they told about "the good ole days." Jeff and Randy used to play "Navigator" while driving. One of them was the navigator and the other was the driver. The driver would only drive whichever way the navigator told him to go. I often thought they were going to crash. Here is a picture of the 2 guys one Halloween. Can you tell who is who?