Apps How to use other applications to handle action

[MIIISTER NEUGIT]

How to you make it so if a user does something, it asks them how they want to do it and it brings them to that application? Like if you go "Share" a photo or video it pops up a list with all apps that can do that for you like facebook or text or email , ect.? I am asking how to have my app use other apps, not them use mine.