When I'm just standing around waiting for a class with no-one to talk to I will play around with the mobile phone, but not necessarily texting. It is not terribly exciting since it is a very old model of phone, with just basic phone calls and SMS and little else, but I can't justify a new mobile phone if I rarely use it. I only do it because I am either being ignored, or there is no-one to approach since everyone seems to be locked into conversation with other people, so I do it to stave off anxiety from being the "odd one out".