Following on from a comment in the morning thread about chris and his lady-friend sharing calendars, what are the possibly weird to the rest of the world things have you done with a significant other?

When I was at uni, my then boyfriend and I used to hold our index fingers in the air when we were out at a party and were opposite sides of a room. This was our special code for 'I love you' . Yikes.

The things you do when you're in love.