Fake smiles and the computers that can spot them: 6 Minute English

Sometimes it can be difficult to tell if someone is really smiling or the smirk on their face is fake. But now there are computers that are able tell real smiles from fake ones better than humans can. How do they work and what are the benefits? It's something Neil and Sam are discussing in 6 Minute English as well as teaching you some useful vocabulary that will hopefully bring a smile to your face.

This week's question:
The expressions we can make with our face are controlled by muscles. How many muscles do we have in our face? Is it:

A: 26
B: 43
C: 62

Listen to the programme to get the answer.

Vocabulary:

facial
adjective to do with the face

to infer
to come to a decision about something using the information you have, which may not be complete

in real time
at the same time as, without delay

to induce
to cause something to happen

genuine
real, not fake

to figure out
to calculate, to work out

To download a transcript and audio, go here: http://www.bbc.co.uk/learningenglish/english/features/6-minute-english/ep-190919



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