Creating todos, with tags, with task, with status, with time to complete in hours and even with picture, that's paramount:D
Editing todos, by clicking on in the right lower corner of todo
Deleting todos, by clicking on in the right lower corner of todo
Filtering todos, there is a great todo filter intended for this, so you can sort todos by date, tags, status, etc
Viewing todos of others, you are able to see only those todos that are public and only if user is public or you are following him
Search todos by tags, note that private todos and todos of private users will not be visible. And of course you can filter fetched todos
Set your avatar, By clicking on the icon on the left from your name
Edit your avatar, By clicking on your avatar image below your name and choosing "update" option
Delete your avatar, By clicking on your avatar image below your name and choosing "delete" option
Edit your names
Edit your info, tell something about you, your work, your relationship status, leave link to you website
Edit your privacy settings, making your profile private, your info can be exposed only to your followers, and none of your todos will be visible in tag search result Moreover users that does not follow you will not be able to message you
View you followers, by clicking on followers in user section + you can do the same with some other users
View users you are following to, by clicking on following in user section + you can do the same with some other users
View users you sent requests to, by clicking on Outcoming requests at user section
View users that sent you following request, by clicking on Incoming requests at user section
Send follow request, by clicking on
Reject someones following request, by clicking on
Cancel request that you have sent to someone, by clicking on
Unfollow user, by clicking on
Remove user from followers, by clicking on
Accept incoming requests, by clicking on
Initiate or open existing conversation, by clicking on
You can block user, by clicking on in the upper right corner and choosing "Block user" option. The blocked user will not be able to contact you, send request or view your todos somewhere
You can unblock user, by clicking on in blocked user item
You can find user by username, at main page
Open conversation, by simply clicking on it
Filter messages, by author, whether message is liked, its text and the date it was written at (this feature is only available on PCs)
Write message, by typing it and then clicking on
Edit message, by double clicking on it, choosing retyping it and clicking on , note that you can only edit messages that you wrote
Delete message, by double clicking on it and choosing , message will disappear permanently, note that you can only delete messages that you wrote
Like message, double clicking on message, will TOGGLE like