Generosity cannot be countered with expectation
When you aim to give something of value to your head of sales, rewarding her for her phenomenal lead generation... When you sit down with your mentor and offer generous praise...
When you give a presentation at your local non-profit about the top 5 trends in social and how they could utilize them...
Or when you send flowers to your girlfriend saying thank you for being in my life..
There shouldn't be an expectation of more, not from the receiver or the giver.
To be truly generous is to give without expectation. The opposite of that is manipulation.
People sense when altruism is linked to hopes of returned favors.