Maximize the use of all of the senses in making an impression on another person.

Sight, Sound, touch, taste and smell

Sight - in person interview, if they can see you you are a real person and vise versa
Sound - verbal communication both ways creates a real bond between people
Touch - Handshake, snail mail thank you note is very tactile (or tangible)
Taste - "breaking bread" together leaves an impression
Smell - For this one one does not want to leave a negitive impression.

David Perrings