Sorry to be :topic: for a moment.
I'm a terp, and whenever I meet a new client for the first time, I introduce myself, give the client my business card, a key chain with the company's info, and a stamped, self-addressed post card from my company. The post card has spaces on it for the client to fill out for feedback about the terp. The clients are not required to sign their names or include any identifying info if they don't want to. That is, they don't need to include the time and place of the service.
At the very least, in a one-on-one setting, a professional terp should give you a business card upon introduction. I realize it is sometimes not possible during large meetings with several clients present.
I also give business cards to the hearing clients whenever possible.
