Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: When you meet someone for a first time and exchange business cards with him/her, what should you do to remember the face?
Draw his/her face on a business card with a pen.
Focus on the person's unique features and make a mental note.