I manage the Phoenix chapter of an international women buiness owners marketing organization. We ask an train guests to ask, How can I help you develop your business or what can I do for you to meet your 30-day goal. We learn to answer with specifics; a p/t project manager for a 3-month commitment. A CPA to set up corporate books, or Where can I receive skills training in ___?
Everyone within the group who hears this requests writes on the back of their own business card (exchange business cards here) with a referral, a tip, a technique, or a general offer to meet to learn more. 
This has served our entrepreneural community well since 2001. When guests attend our event, they are shocked that someone would actually embrace their request and respond or even follow-up within a day or two.
An unfortunate example of how many professionals do not practice good manners and are surprised when others demonstrate good manners.