I'm like you KatyK, I blush very easily so telling whoppers is out of the question for me. I can seem to get away with what I call "kind" lies - you know the sort of thing, if a friend asks if you liked the present they gave you, you always say yes even if you considered it too awful even for the charity shop!!
Some time ago I did meet someone on holiday who seemed to have lived a very varied and exciting life, she said she had taught English all over the Middle East, taught computer science in USA and UK, had been on several archeological digs in Greece and Egypt, was a dance teacher and had played in a rock band. Being a trusting soul I believed her until one night when she got up to dance - her dancing was worse than mine (and that's saying something)!