Deaf people can communicate in several ways:

1. Sign Language: Using hand symbols to communicate, such as Thai Sign Language or other developed sign languages for communication with deaf people.

2. Lip Reading: Observing the movement of lips and facial expressions to understand what is being said.

3. Writing: Using short written messages or notes to communicate with others.

4. Technology: Using apps or programs that assist in communication, such as speech-to-text translation.

5. Signals: Using pre-agreed signals or gestures to communicate with those nearby.

The communication methods may vary depending on the convenience and familiarity of the individual.