The antonyms of the phrase "manual communication" would refer to the means of communication that do not rely on sign language or body movements. The most common methods are verbal, written, and digital communication. Verbal communication involves using spoken words, tone of voice, and intonation to convey meaning. Written communication involves the use of written language, such as letters, emails, and texts. Digital communication methods encompass a range of technologies that allow people to communicate electronically, such as video conferencing, social media, and instant messaging. Despite these different means of communication, it is essential to always ensure that the message transmitted is clear, concise, and well-understood by the recipient.