A man is silhouetted as he drinks a pint of beer in the Black Lion pub in Hammersmith in London, Monday, May 17, 2021. Drinks were raised in toasts and reunited friends hugged each other as thousands of U.K. pubs and restaurants opened Monday for indoor service for the first time since early January. Yet the prime minister sounded a cautious tone, warning about a more contagious COVID-19 variant first discovered in India that threatens reopening plans. (AP Photo/Frank Augstein)