G’day is a shortened form of ‘Good Day’ and it is the equivalent of ‘Hello. Mate means friend or buddy and it can be used to address your friend or a total stranger by saying G'day mate! So, everyone can be your mate in Australia.
We should all say G'day more often, in general. Just the simple act of smiling or laughing can make you happier.
But even better: say G'day to a stranger. Too often we brush past strangers without a glance, or a straight or scowling face. At best, we might give people a tolerant little smile, to show that we are not mean. Usually most of us try to avoid any eye contact at all.
Try this instead: look strangers in the eye, and give them a big G'day. In most cases, you’ll get a hello or G'day in return. The more you smile, the more smiles you’ll see in return.
End result? A happier world. So simple!