Hi Ken, I have a simple way to show people the 'size' of the moon. If you hold your index finger up at arms length,(I said INDEX finger), the average width is around 1 degree. The moon is 1/2 degree or 30 arc minutes in diam. So you have a basic way of explaining to people, who come up & say "Wow, the moon is sooo big tonight"! You just tell them it's an optical illusion, because they have something at ground level to compare it with. Just be careful when you point your finger at them tho!
Also you must have BIG "Ps" down there!!
L.