The idea of bots is such popular due to the natural style of interaction. As it’s nice to be able to speak to a machine in a human-like manner (i.e., not through buttons and so on). And it’s also quite exciting to get the answer in a similar way (i.e., through speaking). For this reason we have Jabber bots, IRC bots, console bots (e.g., Emacs’ doctor), voice bots (e.g., Siri), and many more. Nevertheless, the concept of such bots is apparently incomplete as they can’t fully imitate the behavior of humans! In particular, the text messages just can’t express emotions (in a convenient way). To be able to do this bots would need bodies – e.g. eyes for users to look into, faces to express feelings, etc.