What is the logic behind the order of friends?

The order of your friends depends on the amount of interaction you have. If you interact frequently, the user will appear higher in the list. We take into consideration a lot of things: the amount of exchanged messages, comments, replies, etc. Your newest friends also appear at the top of the list for a while so you don't lose track of them.

Other users see your friend list in a different order: the first criterion is the number of mutual friends and the second is the registration date. The same logic applies to the way you see other users' friend lists.