Communication cards are a voluntary system of boundary regulation where the user may feel more comfortable opting in and out of social interactions. They can help you indicate your communication preferences clearly and non-verbally.

• Green/Circle indicates that you would like others to talk to you.
• Yellow/Triangle indicates that you only want known people to talk with you.
• Red/Octagon indicates that you don’t want anyone to talk to you.
• Blue/Square cross indicates that you only want staff to talk to you.

This design is inspired by “flagging,” which is used to communicate partner preferences or identity clearly and non-verbally but also subtle to the general public. Color and placement of the “flag” indicates specific preference or identity Flagging methods have varied between communities but some prominent ones have been the hanky code, key code, nail polish code, and ace/aro rings.