Networking advice for the Golf Course

Monkeys,

Although a rising Junior, I have few personal relationships with individuals positioned to further my career goals. This summer I interned with a boutique firm providing institutional reductive research. In addition I worked weekends caddying at a Golf Club in Westchester County. This has been my 5th year working at the course. Many of the members here have been successful on the Street and I was curious as to the best way to leverage these relationships onto a professional stage. Of the members, 2-3 have reached out to me with their cards, but I am unsure If or how to approach others.

Basically: I) What do you think is the best way for me to maintain my relationships with the individuals that reached out to me

II) How should I go about approaching other members for help

III) Where should I draw the boundary in asking for advice/help (Shadowing, Forwarding Resume, Interview, Job Offer)?

Any advice is greatly appreciated!