LONDON — British Prime Minister Boris Johnson has announced the next tentative steps to reopen society, allowing live indoor performances, the reopening of leisure centers and bowling alleys starting on Aug. 1.

Johnson announced a raft of measures aimed at easing COVID-19 restrictions on Friday, including trials on larger gatherings in places like sports stadiums as the country emerges from a lockdown imposed on March 23.

Johnson is trying to walk a tightrope, persuading Britons that the country is ready for new outbreaks while also encouraging a return to shops, restaurants and workplaces to kick-start a moribund economy that has shrunk by a quarter since March.

He also offered employers “more discretion’’ in bringing their employees back to work.