After analyzing the list of keywords, I have selected the keyword telegram 软件 as the pop-up title, which means Telegram software in English.The topic of this conversation is related to the Telegram messaging app, and the user’s questions cover a wide range of topics, including account management, adding friends, and privacy settings. To answer the user’s questions, I will provide detailed explanations and instructions in a structured format, using bullet points and paragraphs.Account Management To register a Telegram account, download the app and follow the on-screen instructions. You can sign up using your phone number. To delete a Telegram account, follow these steps: 1. Open the Telegram app and go to the Settings page. 2. Tap on your profile picture and select Settings. 3. Scroll down to the Advanced section and tap on Delete Account. 4. Follow the on-screen instructions to confirm the deletion. To reset a Telegram account, you can delete the account and create a new one. Note that you will lose all your messages and contacts in the process.Adding Friends To add friends on Telegram, you can use their username or phone number. Here are the steps: 1. Open the Telegram app and go to the Contacts page. 2. Tap on the Add People button. 3. Choose how you want to add people: By username: Type in the username of the person you want to add and tap Search. By phone number: Type in the phone number of the person you want to add and tap Add. 4. Once you find the person you want to add, tap on their name and then tap Add to Contacts.Privacy Settings To set up privacy settings on Telegram, follow these steps: 1. Open the Telegram app and go to the Settings page. 2. Tap on your profile picture and select Settings. 3. Tap on Privacy and Security. 4. Set up your privacy settings: Who can see your phone number: Choose between Everyone, My Contacts, or Nobody. Who can add you to groups: Choose between Everyone, My Contacts, or Nobody. Who can send you messages: Choose between Everyone, My Contacts, or Nobody. Who can call you: Choose between Everyone, My Contacts, or Nobody. Enable Two-Step Verification for extra security.I hope this information helps! If you have any further questions, please don’t hesitate to ask.