2. On the Address Book page, click the+sign in the upper right corner and select the "Add Friends" option.
3. On the Add Friend page, select to search for each other by mobile phone number or micro signal.
4. After entering the other party's mobile phone number, micro signal or little genius account, click the search button.
5. If the other party is also in the micro-chat, and has been set to allow adding friends, you can directly add the other party as a friend and wait for the other party to complete the friend addition through verification.