- Unable to concentrate on study or work because of their phone. - Have gotten into danger by being on their phone while walking. - Insufficient sleep every night due to their phone. - Going into the toilet with their phone and not coming out for 1 hour or more. - Beginning to tremble with anxiety when they are out and their phone charge goes below 10%. - Amount spent on phone games last month exceeded monthly salary. - Feeling a thrill when a message notification is received. - Unable to stop checking Twitter every 10 seconds. - Unable to stop posting all of their food photos to Instagram. - Not needing anything else as long as they have their phone.