rè nao
bustling with noise and excitement
lively
kàn rè nao
to enjoy watching a bustling scene
to go where the crowds are
zhuā nao
to scratch
to mess about with
to quarrel
to scramble to do
sb or sth that one can rely on
còu rè nao
to join in the fun
to get in on the action
(fig.) to butt in
to create more trouble