Braille is a tactile writing system used by people who are visually impaired. It is traditionally written with embossed paper. Braille users can read computer screens and other electronic supports using refreshable braille displays. They can write braille with the original slate and stylus or type it on a braille writer, such as a portable braille notetaker or computer that prints with a braille embosser.

Braille can help deaf-blind people access information in books and magazines, although it is not intended for use in one on one conversation.  Some deaf-blind people do chose to use braille as a method to communicate with others. 

https://en.wikipedia.org/wiki/Braille

Braille on Braille Paper:

A chart of Hebrew letters below the Braille letters.

The person who is speaking holds their hand on that of the deaf-blind individual, moving their finger over the Braille letter and spelling out what they’d like to say. In this way, the deaf-blind individual can “feel” what’s being said to them. The person spelling does not need to know Braille in order to use this method. This method is used by very few deaf-blind individuals.

Braille Display:

The Braille display uses raised symbols representing unique Braille letters. Using a Braille display makes it possible to use a computer and the internet.

Finger Braille:

This method uses the fingers as if they’re typing on a Braille typewriter. The deaf-blind individual’s fingers tap the other person’s hand just as if they were striking the locations on a Braille typewriter. This can also be done on the other individual’s knee exactly the same way.  To use this method, both individuals communicating must be familiar with Braille writing. This method is used by few deaf-blind individuals.

Other Communication Methods​

Israeli Sign Language

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Lipreading Speech

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Tadoma

communication method for deaf-blind people where the deaf-blind person puts their hands on the speakers jaw...

Print on Palm

The letters are written on the hand of the deaf-blind person so s/he can “read”...

The Lorm alphabet

At the heart of the system is a thin cotton glove or a diagram of the hand  ...

Tactile fingerspelling

Tactile fingerspelling is a manual form of the alphabet in which words are spelled out ...