The article link below provides great visual material to help understand the need for masks, but also the need for additional safety measures that people may not have considered. Looking over the article below will give you a better understanding of methods to keep yourself and loved one’s safe when being with a group of people.
https://english.elpais.com/society/2020-10-28/a-room-a-bar-and-a-class-how-the-coronavirus-is-spread-through-the-air.html?ssm=TW_CC