I think that everyone should know how to do this as it may come in use at any point in your life whether a loved one needs it or a complete stranger needs help
Both of these are very easy to learn and remember things that can save lives and is considered to be another part of basic first aide
To provide information on accurate ways to do this we will directly cite and research from accredited medical sources
The heimlich manuever is a very simple. A series of steps and a visual are given to explain how to perform it. It is used if an object such as food is obstructing someones airways. In other words it helps someone choking
Image source: U.S Army Medical Dept. Public Domain
You can also perform this on yourself using the same method although an object such as a chair or railing can be used to help
It is very important that the method is performed correctly as stated above or harm can result in the person
It is also important to understand how to prevent choking. Although unlikley it can happen and to prevent it particularly among young children you should keep chokable objects out of reach, cut food into small peices, and supervise them. Be careful with round objects too such as grapes or hotdogs