BSL Glossary - Crowded Cottage
Mmm - Example
A crowd of deaf people fancied going along to see a film. They went in and decided which one to watch. One of the crowd asked a woman that worked there if the film had subtitles. "Mmm" said the woman and asked the man next to her. He did the same and after conversation with others came back and said that yes there were subtitles, so at that everyone bought their tickets and went into the film.