This is BSL (British Sign Language). In the UK around 151,000 people use it, with around 87,000 of them being deaf (this figure does not include people who use it professionally, e.g. interpreters, unless they also use it at home). There are at least 50,000 children who are deaf in the UK. Sign languages are fully functional and expressive languages; at the same time they differ profoundly from spoken languages. BSL is a visual-gestural language with a distinctive grammar using handshakes, facial expressions, gestures and body language to convey meaning.
Picture Description: Picture shows 6 boxes each with a different person showing a different sign. The top left box shows a person in a yellow jumper signing "happy", with a smile on their face. The top middle box shows a person in a red jacket signing "cross", whilst frowning. The top right box shows a person in a blue jumper signing "sad" whilst looking upset. The bottom left box shows half a person in a pink top signing "safe". There is another box inside of the box showing their face with a smile on. The bottom middle box shows a person with a purple top signing "surprised". They seem to look happy. The bottom right box shows a person in a green shirt signing "excited" with a smile on their face.