All right?
British SlangDefinition
Informal British greeting meaning “hello/How are you?”, also used to check if someone is okay depending on tone and context.
Examples
"Walking past his mate, he nodded and said, 'All right?' as a casual hello."
"After the cyclist took a tumble, a passerby stopped and asked, 'All right?'"
"He opened the video chat with a grin and a quick, 'All right?' before catching up."