[Cerium]

My wife is deaf in her left ear as well. She doesn't usually tell people, but does tell people that she likes to walk on the left and sit on the left side of rectangular tables.

One interesting effect is that I have developed a preference for sitting or walking on people's right hand side, especially with good friends or people I respect.

The most interesting effect is I have noticed how much people take for granted the ability to sense where sound is coming from. Early on in our relationship I would occasionally perform "magic tricks" where I know immediately where a sound is. She would ask: how did you know where it was?