Is it OK to read Infinite Jest in public? Why the internet hates ‘performative reading’
(www.theguardian.com)
There is definitely a spectrum of performativeness in public reading, with "Grimes sitting on the sidewalk in designer distressed clothing, reading the Communist Manifesto" at one end, and sitting in a chair at a coffee shop at the other.
We're performative every day; it's not like the clothes we wear and how we style ourselves and the choices of people we hang out with in public aren't also performances that we use to signal information to others. Whether that performance rises to the level of performativeness (derogatory) is mostly just in the eye of the beholder: A non-reader might see any public reading as performative. A non-activist might see any activism as performative. Etc.