While thinking about everything you're going to say may sound exhausting to some, it doesn't require a lot of brainpower. Really, all you'll usually need is a split-second to figure whether something you say might negatively affect someone around you.
[header] How to not be rude [title] Think before you speak. [step] So many social errors could be avoided if only more thought were involved. A truly gifted conversationalist will always try to filter what he says before he finally says it.