Request: Reading everything but not engaging in discussions. Feeling that whatever one might have to say is unnecessary and redundant.
laughing at a dirty or vulgar joke
Priority request: Sometimes I laugh at them and feel guilty
learning from your mistakes
Are mistakes just valuable life lessons?
skulduggery
underhanded or unscrupulous behavior -- merriam-webster.com
sunk-cost fallacy
"the phenomenon whereby a person is reluctant to abandon a strategy or course of action because they have invested heavily in it, even when it is clear that abandonment would be more beneficial" -- Google dictionary
slouching
request: I've noticed I have and aversion towards slouching, but that's maybe not too helpful
loss of character
request: acting or behaving uncharacteristically
smoking in public near people/children
Doctors, governments and the public have concluded second-hand smoke is deadly.
infatuation
can be mistaken as love. It is more of an obsessive and attached style of connecting to someone, as opposed to having real love for a person -- wikipedia
baby talk
Request: the consciously imperfect or altered speech used by adults in speaking to small children
attention seeking behavior
Request: saying or doing something with the goal of getting the attention of a person or a group of people.
sneaking treats
something kids do sometimes (Priority request)
"blowing money"
spending it wastefully on things that are fun but not necessary -- phrasemix.com
promise
“a declaration that one will do or refrain from doing something specified” — merriam-webster.com
go around in circles
"to keep doing or talking about the same thing without achieving anything" -- Cambridge dictionary