get on like a house on fire
strike up
cotton
out of the chute
ring up the curtain
début
begin
get together
hit the ground running
straight out of the chute
clean slate
get on with
snap to it
pitch in
inchoate
fly out of the traps
from the get-go
reboot
from the word go
off
outsetting
make someone's acquaintance
friendly
keep in with
get on
instantial
no time to lose
cut one's teeth
kick start
hit it off
hit it up
get a jump on
plunge in
steal a march
flying start
running start
astart
exordium
get to know
immediacy
repartner
revirginate
in the twinkling of an eye
to begin with
in the blink of an eye
off the bat
off the rip
step to
beginner
click