In many parts of Madagascar they speak french. hello is bonjour. Malagash is salama
Veloma
People in Canada speak English, so I imagine they would say 'bye'
selika
masalama
uhi
adios
In Puerto Rico, people commonly say "¡Hola!" for hello and "Adiós" for goodbye. Additionally, a more informal way to say goodbye is "Chao."
People say goodbye as life is very uncertain, the two may not see each other next day as one could be dead.
what's goodbye in cebuano
see you later alligator
"Hello" is aloha, which can be used to greet people or say goodbye. Another way to say goodbye is a hui hou, which means "until we meet again."
Beijing people speak Mandarin. Therefore it is "再见" ( Zàijiàn ).