A guide to the subtle art of facestalking

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Ever "poked" someone you've hardly met? Ever found yourself frittering away hours examining the holiday photos of someone you wouldn't say hello to if you passed them in the street? Thought so. These are the questions prompted by this wry video made to promote the new opera by New York composing wunderkind Nico Muhly, which opens at the Coliseum later this month.

Muhly's opera, Two Boys, is based on a true (and grisly) story of what can happen when internet frolics spill over into the real world — and you can read more about it in an interview with him in the July issue of Esquire — but as this video reminds us, all of our online "selves" are a bit weirder than we might like to think.

Two Boys starts on 24 June at English National Opera, St Martin's Lane, London WC2N 4ES, www.eno.org