How does a deaf person feel when a hearing person approaches them in public and tries to use sign language?
Because of their deafness, deaf people sometimes feel isolated, especially in public where many people do not know sign language. They may in fact enjoy it if you come up and “say hi” and make small talk using sign language.
Before you approach a deaf person(s) think about the environment and situation at the time. Are two or more deaf people signing with each other? Make sure you are not interrupting them. Does the person seem busy or in a hurry? If so, try not to delay them. These are just common courtesies and likely the same types of things you would notice before going up to a hearing person in public.
It’s ok to say, “Hi, my name is” but be prepared to get a full response after that! It’s not over just because you have exhausted your vocabulary. At the same time, don't be intimidated. Most deaf people will understand you are not a native signer and will be patient with you.