Robots can now pick up the mood of their users, and can even tell if they're drunk.
Now computers can sense the mood of their users. Already they can identify smiles, frowns and blushes. Many people have commented on the contrast between Tony Blair's urbane comments to last week's Chilcott Enquiry and his physical unease in its first minutes as manifest in blinks, foot-tapping, crossed legs, and soon. Body language – non-verbal communication – is a valuable clue to innerfeelings (a truth, or half-truth, that men's magazines often use when advising their readers how to tell whether a young lady might be interested in body language of another kind).