People express thoughts mainly by using

gestures

Language,Feelings

If you are limiting the choices to parts of speech, I would say mainly nouns and verbs.

language, which serves as a means of communication and expression. Language can be spoken, written, or nonverbal, and it allows individuals to convey their thoughts, ideas, emotions, and intentions to others.

When people express their thoughts using language, they use various linguistic elements such as words, sentences, phrases, and gestures. They combine these elements to communicate their intended message and to convey information effectively.

To express thoughts using language, individuals typically rely on the following aspects:

1. Vocabulary: Knowing and choosing appropriate words to convey the intended meaning is crucial. Building a diverse vocabulary helps express thoughts more precisely.

2. Grammar: Understanding the rules of grammar allows individuals to construct sentences and phrases correctly. Consistent grammar usage helps deliver and understand the message accurately.

3. Syntax and Structure: Organizing thoughts in a logical and coherent manner is important for effective communication. Following proper sentence structure and syntactical rules aids in conveying thoughts clearly.

4. Tone and Intonation: Vocal expression, including tone and intonation, influences the way thoughts are perceived. Utilizing the appropriate vocal cues, such as pitch, rhythm, and stress, adds meaning and emphasis to the spoken word.

5. Body Language: In addition to verbal language, nonverbal cues such as facial expressions, gestures, and posture can also contribute to conveying thoughts. Body language can enhance or reinforce the message being communicated.

To express thoughts effectively, individuals must practice and develop their language skills. Active listening, reading, and engaging in conversations allow for exposure to different forms of expression, which in turn aids in the development of one's own communication abilities.