Hindi is the fourth most spoken language in the world, and it's considered as one of the official languages of India. To teach Hindi, it's important to have a strong grasp of the language, including grammar, vocabulary, and idioms. Additionally, having experience in teaching languages and understanding the nuances of the language can be beneficial.

An effective Hindi teacher should have excellent communication skills, patience, and the ability to adapt to the learning style of their students. They should be able to use a variety of teaching methods, such as using real-life examples, interactive activities, and multimedia resources to make the learning process more engaging and interactive.

There are different methods to teach Hindi. For example, the Communicative Language Teaching (CLT) method focuses on teaching students to use the language in real-life situations and interactions. The Direct Method, which emphasizes teaching the language through listening and speaking activities, and the Audio-Lingual Method, which is based on the theory that language is acquired through habit formation.

In summary, to teach Hindi effectively, a teacher should have a strong command of the language, experience in teaching, and the ability to use different teaching methods. They should also have the qualities of patience, good communication skills and adaptability to make the learning process more engaging and interactive.