I'm not sure I'd agree with attention seeking/giving. Though I'm prepared to admit could be me trying to wriggle out of being an attention seeker 
Say for instance you walk down the street and smile and say hello to people, or chat to people in the bus stop. A waitress in a cafe that is chatty and friendly. A singer singing to people.
There all extroverted behaviour, but in any exchange there is energy both ways. Your smiling and acknowledging the other person, a singer is expressing them selves - In return attention/energy is recipricated
The exchange could of course be more selfish.
Would being introverted be more a non exchange perhaps? Avoiding interaction and energy exchange?
I'm with an introverted person so I agree with the opposite thing.

Say for instance you walk down the street and smile and say hello to people, or chat to people in the bus stop. A waitress in a cafe that is chatty and friendly. A singer singing to people.
There all extroverted behaviour, but in any exchange there is energy both ways. Your smiling and acknowledging the other person, a singer is expressing them selves - In return attention/energy is recipricated
The exchange could of course be more selfish.
Would being introverted be more a non exchange perhaps? Avoiding interaction and energy exchange?
I'm with an introverted person so I agree with the opposite thing.