i posted this in the official update letter thread but didnt get any response. anyway, i was wondering if an interviewer gives you a business card with contact info, is that an invitation to contact them? sorry if these seems obvious, i just feel like its pushy. i already sent an update letter to the committee before i was placed on hold, so i was just going to email my interviewer and say "thanks, still interested, what can i do to improve over the next few months?" or something along those lines...