You can make up stories for them, put yourself in their shoes, empathise, understand, appreciate the joy of photography in the capturing the spectrum of human emotion.
Plus it’s only three pounds,
Taylor Wessing Photographic Portrait stuff @npggallery
PS you can always go in St Martins In The Fields and they have free rehearsals and things for concerts if you’re lucky. Especially if you’re a jammy teacher with abundant holidays.