Reveal the ex for who he is

They still dream about their little princess settling with her first love – the boy next door. But whatever she's told you about Mister-Seemingly-Perfect has been in private, so don't go revealing his previous convictions to the in-laws or you'll look bitter.

Mention the night you met

The whole conquest may have been over quicker than Germany's march on Poland but don't tell them that. Instead, talk of romance and candlelit suppers. They won't want to hear that you both first locked eyes in the queue for a doner kebab.

Talk religion, politics & money

Three factors that will always differ between two people are faith, politics and earnings – so avoid it at all costs. Find common ground elsewhere rather than highlighting early causes for possible division. You are less likely to come a cropper this way.

Compare mum and daughter

It's the obvious path for conversation to flow down, comparing your girl to her mum, but don't overindulge here. Remember one is nearing 60, and hopefully that one ain't yours. If you have to compare the girls, stick to facial likeness only, or risk a slap.

Play buddies with Dad

It may seem like a nice game of chess or a day out sailing, but he's only taken you into his sphere of dominance in order to destroy you. You have his daughter and now he wants the sporting equivalent of your head on a stick – don't pander to it.