Aha! Well then, how about compiling a list of adjectives that describes your character, to start?
This way you are building a round, believable character and not a flat, uninteresting one.
Consider how your character would react to different situations, including both pleasant and stressful ones.
Appearance Adjectives
adorable
beautiful
clean
drab
elegant
fancy
glamorous
handsome
long
magnificent
old-fashioned
plain
quaint
sparkling
ugliest
unsightly
wide-eyed
Personality Adjectives
agreeable
brave
calm
delightful
eager
faithful
gentle
happy
jolly
kind
lively
nice
obedient
proud
relieved
silly
thankful
victorious
witty
zealous
Personality Adjectives (Negative)
angry
bewildered
clumsy
defeated
embarrassed
fierce
grumpy
helpless
itchy
jealous
lazy
mysterious
nervous
obnoxious
panicky
repulsive
scary
thoughtless
uptight
worried