Joss is certain everyone is paying attention to his every action and is humiliated that everyone must be noticing his new pimple at school. It appears he has started to experience adolescent .

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Adolescent behaviour

Explanation:

Adolescent behaviour is a stage of development or developmental stage which Teens experience. At this stage they may be conscious of their body due to the changes that occured just as in the case of Joss who was been conscious of his body and was thinking that everyone is paying attention to his every action and is humiliated that everyone must be noticing his new pimple at school.

The changes that happen to Joss was ADOLESCENT BEHAVIOUR because he is now conscious of his body and the way he thinks compare to when he was Teens

egocentrism

Explanation:

Joss is certain everyone is paying attention to his every action and is humiliated that everyone must be noticing his new pimple at school. It appears he has started to experience adolescent. Joe was thinking only of himself without regard for the feelings or desires of others and is humiliated that everyone must be noticing his new pimple at school that is he is in his Adolescent stage therefore joss is an egocentric person

so you know what happened be fore you were alive

explanation:

i think the answer is true : ))