The cold response you got at the hobby shop is common for new guys to the hobby just because this is a hobby that draws lots of introverts. Sometimes we pilots just want to enjoy the hobby without having to invest in someone else. Not to say that's the right attitude, but it is reality. That said, if you show up to a club field and seem to have done your homework and are considerate of others' time in asking for help, I think you'll find that most pilots are fairly generous in helping you get started. Many clubs have a specified training day which lets you be a little more needy without worrying about bothering someone.