Receivers of messages are likely to provide feedback on how they have understood the messages through both verbal and non-verbal reactions. Effective communicators should pay close attention to this feedback as it the only way to assess whether the message has been understood as intended, and it allows any confusion to be corrected. Bear in mind that the extent and form of feedback will vary according to the communication channel used: for example feedback during a face-to-face or telephone conversation will be immediate and direct, whilst feedback to messages conveyed via TV or radio will be indirect and may be delayed, or even conveyed through other media such as the Internet.