1. Disrupted life. It is clear that if a person plays all night long, he won't be able to get up on time.
2. Ready to forget about what matters. When a person loses his job, or denies to go to school because he needs to be online or simply wants to play this or that game.
3. Need for a bigger fix.
4. A person feels anxios or worried when he disconnects, or someone makes him do this.
5. Cravings. Feel the need to play or be online no matter where you are.