When in the terminal, ask to be directed to the crew channel at the info desk. Show your (AOPA or other) card. Be polite but firm. Unsually Bingo!
If you can engineer to have black trews (hide oilstains) and a white shirt on, or a flight suit then doubleplusgood. Must admit I've never had a problem at any of the bigger GA airports with this approach.
h-r
