Social Information Processing theory believes that verbal cues can replace and make nonverbal cues inferior. In SIP it is believed that verbal cues can provide more information than NV and can form impressions.
*SIP believes that nonverbals can be REPLACED by verbal communication
SIP believes that the lack of visual communication through CMC will cause online relationships and interactions to take longer in developing and growing in the relationship. It is more difficult and harder to form and maintain relationships without face-to-face communication
*There is no facial expressions in a chat room or via text messaging or email. The only option would to incorporate clip-ins, insert photos or use emoticons. All of which don't compare to the facial expressions you experience when interacting face-to-face.