Put PPL on a CV? Yes, but don't otherwise mention it unless asked. Pilots tend to think flying is much more important than anyone else does. See the "Biggles, you’re a crashing bore........." thread. Clarkson is not alone. Eg:
How do you know you're half way through your first date with a pilot? He says: "Enough about me, let's talk about flying".
Or:
Never bother to ask someone if they're a pilot; if they are, they'll soon tell you.
Incredible as it may seem to us pilots, flying is a bit of a bore to most of the human race.