Friending: on Instagram (@instagram) you can find existing friends, followers etc. on social networks like twitter and facebook. However when you’ve found and added them, Instagram still periodically checks whether someone you know on these networks signs up later and lets you know in the news tab.  

Friending: on Instagram (@instagram) you can find existing friends, followers etc. on social networks like twitter and facebook. However when you’ve found and added them, Instagram still periodically checks whether someone you know on these networks signs up later and lets you know in the news tab.