As someone who is learning BSL letters, I can say from personal experience that it really does help to break down communication barriers between different communities. Not only does it allow deaf people to communicate more easily with those who can hear, but it also allows hearing people to gain a deeper understanding and appreciation for the deaf community and its culture.
There are a growing number of online resources available that can help you get started with learning BSL, such as this blog post that explains the BSL alphabet. With a little effort and patience, anyone can learn how to sign basic words and phrases in British Sign Language.
It can help because British Sign Language is a unique form of communication that is visual, and doesn’t rely on spoken language. This can be really helpful for people who want to communicate with someone who is deaf, or for people who want to learn more about Deaf culture.
BSL also has its own grammar and syntax, which means that it can be used to express complex thoughts and ideas. So by learning British Sign Language, you are not just learning a new way to communicate, but you are also gaining access to an entire culture and community.