QLSG for example.... meet people for the first time.
The clue for me is in the gaps in their stories when they are talking and the pauses/sideway glances.
Do you realise how premeditated it must be to talk in the 'I' and not 'We' all the time leaving out chunks from experiences...???

Takes a lot of effort...deny your family and then try to deceive some innocent party for your own satisfaction....
can PM you a QLSGer... and UK knows what i am on about.