And indeed there will be time
to wonder, "do i dare? " and, "do i dare? "
time to turn back and descend the stair,
with a bald spot in the middle of my hair—
[they will say: "how his hair is growing thin! "]
my morning coat, my collar mounting firmly to the chin,
my necktie rich and modest, but asserted by a simple pin—
[they will say: "but how his arms and legs are thin! "]
do i dare
disturb the universe?
in a minute there is time
for decisions and revisions which a minute will reverse.

what can you infer about prufrock based on these lines?

he considers himself an important person.
he feels anxious about aging.
he enjoys drawing attention to himself.
he is unfamiliar with customs of polite society.