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One of the worst parts about messaging apps is that anyone can add you to random groups without your active permission. However, the good part is that Telegram gives you an option to disable it altogether. You can change the desired settings from Settings menu -> Privacy and Security -> Groups -> My Contacts and then select all the Telegram users to “Never Allow”. I can’t tell you how much I love this Telegram trick. Send Scheduled and Silent Messages Display large emojis

Request to join a public group App Passcode Options Prioritize Downloads on Android Private Chats in Telegram Settings

Telegram Live Locations and proximity alters (Express Photo) Telegram Location Share Share Live Locations To lock a chat go to Settings->Privacy and Security->Passcode Lock and enable it. Once you create a passcode and enable it, you will be able to lock and unlock your chats by tapping on the lock icon at the top right of the app.

Finally, if you don't want to disturb the other person, choose Send without sound to silently deliver the message to the other party without them getting a notification. Self Destruct Messages on Secret Chats