Good nilo
When you want to say hello during the night without using the common goodbye term - goodnight, and instead using a phrase to greet.
You: Good Nilo!
Friend: good nilo to you too!
Friend: good nilo to you too!
Good Nilo
If you want to say good night and hello at the same time, instead of using the common phrase 'good night' as a goodbye term
You: Good Nilo friend!
Friend: Good nilo to you too!
Friend: Good nilo to you too!