Systems and methods are provided for activating a function of an account card based on physical devices interactions such as a motion pattern detected by the account card. In some embodiments, the account card may include one or more sensors and processing capabilities sufficient to store a motion pattern, detect a motion pattern representing movement of the account card, compare the detected motion pattern to the stored motion pattern, and activate one or more functions of the account card based on the comparison. In some embodiments, the one or more functions may relate to account information communication, such as writing a magnetic stripe, unblocking a magnetic stripe, activating a near field communication chip, displaying an account number, providing power to an antenna, or otherwise enabling communication of the account number based on the capabilities of the card.