I know how to do it, but it often irritates me that I'm expected to do it at all. Sometimes I don't mind. Sometimes I'm OK with doing it.
What I normally do is this:
If it's a random stranger I've never met before, say the usual polite things such as "how are you" and things like that.
If it's someone with whom I've already had a conversation, I wrack my brains to try and remember the things they said to me last time, and then ask them for an update. For example, if I meet a fellow dog-walker I've met before, and last time I met them, their dog had a sore paw, I will ask: "how is your dog's paw now?" This will prompt them to start going on and on and telling me about their dog's paw, and I won't need to think of anything to say for a long time, while they just talk and talk.
With family members, I more or less do the same thing. I think of things they were talking about last time we talked, and ask for an update. This is considered polite, and it's rude not to do it. For example, if somebody phones you to tell you they are going to have surgery for a minor ailment, you have to remember that fact, and then ask them how the surgery went the next time you speak to them. If you do not inquire after their post-surgical health they will think you are uncaring. I have got a bad memory but I do my best to try and remember things like that, so I can ask questions about them the next time we speak.
Last edited by Plodder on 20 Nov 2012, 10:03 am, edited 1 time in total.