1. Learn basic grammar and vocabulary: First, you need to master basic grammar and common vocabulary in Cantonese. You can learn by purchasing Cantonese textbooks, attending Cantonese training classes or searching relevant learning resources online. At the same time, communicate with Cantonese speakers to improve their listening and speaking ability.

2. Watch Cantonese film and television works: By watching Cantonese movies, TV dramas and variety shows, you can better understand the pronunciation, intonation and expression of Cantonese. In addition, you can improve your spoken English by imitating actors' performances.

3. Listen to Cantonese songs: Cantonese songs are a good way to learn Cantonese. By enjoying Cantonese songs, you can learn a lot of practical everyday expressions and slang, and at the same time, you can also exercise your listening comprehension.

4. Participate in Cantonese Corner or language exchange activities: Find the local Cantonese Corner or participate in language exchange activities, and have practical dialogue exercises with Cantonese speakers. This can not only improve your spoken English, but also learn more about the cultural background of Cantonese.

5. Make a study plan and keep practicing: It takes time and perseverance to learn any language. Make a reasonable study plan, set aside some time for Cantonese study every day, and practice persistently to achieve the desired results.

The differences between Cantonese and Mandarin are as follows:

First of all, their pronunciation is very different. The pronunciation of Cantonese is quite different from that of Mandarin, mainly in tone and phoneme. For example, Cantonese has more tones than Mandarin, and the phonemes of each syllable are different. There are great differences between Cantonese and Mandarin, not only in pronunciation, but also in the cultural and historical background they represent.

2. Secondly, their grammars are quite different. The grammar of Cantonese is quite different from that of Mandarin, mainly in word order and the use of function words. For example, the function words such as "no" and "no" commonly used in Cantonese are not found in Mandarin.

Besides, their vocabulary is quite different. Although both languages have some common words, their meanings and usages are quite different. For example, words like teahouse and snacks in Cantonese are different from those in Mandarin.