Supporters react as U.S. President Donald Trump walks from Marine One to the White House in Washington, U.S., October 3, 2019. (Photo by Tom Brenner/Reuters)

A Police officer reacts to protestors outside the Piet Retief Magistrates court where the five accused in the shooting of the Coka brothers on the Pampoenkraal farm appeared, Mhkondo, Mpumalanga, South Africa on April 19, 2021. (Photo by Jacques Nelles)

South Korean football fans react during a public screening in Seoul of the South Korea vs Russia football match at the 2014 World Cup in Brazil, early on June 18, 2014. (Photo by Ed Jones/AFP Photo)

These beautiful shots may look like works of modern art – but they are actually close-ups of chemical reactions. The works were snapped with the help of a group of scientists from the University of Science and Technology of China (USTC) in Anhui, China. Here: Zinc reacting with lead nitrate in a soft gel to form lead crystals. (Photo by Yan Liang/Caters News)

A Palestinian man reacts after his house was flooded by rain water in Khan Younis in the southern Gaza Strip, November 9, 2015. (Photo by Ibraheem Abu Mustafa/Reuters)

Ukraine's Maryna Bekh-Romanchuk reacts during the women's triple jump final at the World Athletics Indoor Championships in Belgrade, Serbia on March 20, 2022. (Photo by Bernadett Szabo/Reuters)

A woman is helped as she reacts on the floor amid anti-government protests after Peru's former President Pedro Castillo was ousted, in Lima, Peru on January 23, 2023. (Photo by Pilar Olivares/Reuters)

Filipino informal settlers react during a demolition raid at a shanty town in Pasay City, Metro Manila, Philippines, 01 August 2024. (Photo by Francis R. Malasig/EPA)