I do have full blown conversations with my lot, but the best one was when Humphrey got himself free in the garden at the weekend. Its fully enclosed so I knew he wasn't going to escape, but I wasn't up to giving chase, so I stood in the middle of the path explaining to a happily exploring piggy that no, running around poking noses into strange things was not a good idea, and yes, little Humpy-Wumpy-Haystack did want to come back, because look, mummy has some celery and all the other piggy-wiggies will be jealous of him running free, yes they will.
I bet my neighbours loved the free show!