boldly
confidently
have one's tail up
dashingly
surely
fiducially
superconfident
courageously
daredevil
impishly
puckishly
opulently
garang
assertive
empowered
make book
obovately
convincingly
bet a dollar to a doughnut
freckly
ultraconfident
jauntily
audaciously
daring
self-confidently
daringly
lionheartedly
masterfully
surefooted
high-spirited
too big for one's britches
shoot first and ask questions later
ardently
temerarious
daredevilism
presumingly
convictively
temerariously
like a boss
jaunty
hyperconfident
intrepid
undaunted
bold as brass
asseverate
overboldly
felicitously
superbold
flatly
spiritedly
volitionally
with all one's heart
willingly
avowable
assertively
from the bottom of one's heart
unfeignedly
securely
bad
stolidly
sincerely
truly
crousely
roundly
personably
venturesomely
vincibly
overweening
style it out
feel up to
bravely
proudfully
tendentiously
obeisantly
roseately
even-mindedly
bronze
pudically
procacious
rely on
superconfidence
self-assuredly
venturesome
undisguisedly
lion-hearted
tendermindedly
staunchly
stanchly
flauntily
pushiness
determinedly