if u forget something for homework or your teachers name, they'll know because they heard it.
the colour of the remembrall when you forget something is Red
Some stupid thing teachers teach you and you will forget it after the summer
Find out why they hate you and remedy the problem. If they hate you for who you are, then forget them, they've no purpose being your friend anyways. If you did something wrong, apologize.
you can forget about it by tuning your mind to something else. Also learn to forgive yourself.
talking
People forget because of stress sometimes because they are always busy others forget because of their age some forget because its a geneticall problem.
Most do at least until the last stages of it, though they may forget that they do and only realize it again when trying to communicate or think of something.
Accept the fact that you did it
Depends, Some teachers just get mad a little but then get over with it, some want explication, some ask other classmates to check your bag.
You cannot forget something by thinking about it. The best way to get over something that is dominating your mind is to focus on something else. Seek out new pleasures and in time you will forget. It is best to not suppress a memory, but replace it with better memories.
Breathe. You can't forget to breathe but you can be incapable of breathing.