Creative Writing -- Chinese Phone Calls

I have noticed that whenever I have a Chinese conversation on the phone with another person, the last few seconds are always pointless in the phone call. It's always like "Oh, Aw, Ok, Good then, Oh, Ok, Ok, Bye". So counting back at the words, or rather pointless phrases, the two of us, I and the other person on the line have just wasted three to five seconds of our life.

The overall conversation during the phone call is great. We get to talk or discuss everything that is necessary, or the point of making the phone call. But, it is just the last few seconds that kills the entire phone call. It is the pointless five seconds before we say "Bye!" and hang up.

But, why is it only Chinese phone calls? Is it because we add other phrases to our daily language in the first place, such as "Ok la"? Perhaps...