Testosterone does not make you an angry person, contrary to popular belief.
The amount of acne you get depends on your genes.
You will not grow on testosterone. There is a chance that you may, but it is very rare because your growth plates are most likely already closed.
It does not make you gain muscle. You will most likely gain a little weight, but unless you work out, it’ll all go to your gut and turn into fat, not muscle.
Testosterone will not make you sexy or hot. You will look like a teenage boy going through puberty.
It also does not make you a priapic monster who has no feelings.