Getting the attention of a deaf person can be awkward when you don't know what is culturally appropriate.

Are you supposed to yell or throw something?
Is it rude to touch them?
What if it is an emergency?

If a deaf person is not looking in your direction and you need to get their attention,

shouting will not help you because they can not hear you.

If you shout at a deaf person you might just end up insulting them.

Throwing things to get a deaf person's attention can be dangerous so this is not recommended and, just like with hearing people, could be considered rude.

Reaching out to touch a deaf person in order to get their attention is one of your culturally accepted options.

Tapping a deaf person on the arm or shoulder is a great way to get their attention.

If you are not close enough to tap a deaf person, waving may work.

It is culturally accepted in the deaf community to wave frantically to get the attention of a deaf person.

If you are unable to tap a deaf person to get their attention and waving does not work, the other option is to get the attention of someone around them and ask for their help in getting that deaf persons attention.

This happens often at deaf events and is a culturally accepted way to get someone's attention.