The habit of talking

Do you have habit when talking?
For example, I play with straw or case of straw
when I talk with friends in fast food.
It sometimes brings impression to listener
that I’m not interested in speaker’s talk.
And I often start conversation without subject
when talking in Japanese.
It sometimes leads misunderstanding.
I asked this question some of my friends recently.
One of them said that he stare at listener for a long time.
It is not bad habit, we have learned from a child
that we should talk with looking listener’s eyes.
But, it sometimes brings uncomfortable feelings.
These habits are done unconsciously,
because it is habit. (124 words)