Blinking can tell you if the listener is interested

[Bretrick]

We blink about 15,000 times a day.
Take note of the blinking of the person you are talking to.
Rapid blinking? They are interested.
Slower blinking? Starting to lose interest so either make the topic more interesting or wrap it up and give them a turn at talking

 

[dilettante]

Just hope your blinking isn't mistaken for winking.

 

[oldaunt]

And that non-blinking vacant stare.....

 

[CallMeKate]

Take note of the blinking of the person you are talking to.
Rapid blinking? They are interested.
Slower blinking? Starting to lose interest so either make the topic more interesting or wrap it up and give them a turn at talking

Ah, another of the beauties of online communication... you can say something and have no possible idea of how many times I may be blinking or how fast.