Hi there.
Today I will introduct you one of the best messaging and chat application for you smartphone, tablet, browser, etc
Let's get straight to the case. Key positions of starting using Telegram messenger-app:
- first you register your app on device with you phone number by receiving SMS
- your Telegram-app connects with your device and you login by starting app with no additional passwords from now on
- you can and SHOULD setup additional password for Telegram app on your device. We call this 2FA (Two-Factor Authorization). Go to "Settings" to do it.
- you should also go to "Settings" and choose username so you can contact with other people worldwide. This is necesarry because Telegram does not disclose your phone number to others (but there is a special button to send a person your phone number) and people there are identified by username they chose. Username preceds "@" symbol, just like in #steemit.
- you can join and create chats now. There are three types of them. Group, supergroup, channel. I will make additional post about them later.
Start using Telegram if you still did not do it. The simpliest way is web-gate https://web.telegram.org
Follow me for more on Telegram and other cool staff. Later we will discuss what differs Telegram from other messengers, learn how and by whom it is developed and more. By the way, I learned about #steemit from 
Here is English community:
Fell free to join RUSSIAN SteemIt community in Telegram:
Additional info in Russian about SteemIt communities in Telegram can be read here: https://steemit.com/ru/@on0tole/soobshestvo-steem-v-telegram