tread carefully
To exercise precaution; to be careful with regards to the situation; to tread lightly.
ADJ.
all, dark, done, offending
She carefully removed all the broken glass from the kitchen floor.
VERB + CAREFULLY
cards, carry-on, checked, discussed, drive, feel, handled, listen
She carefully checked the documents before submitting them to her supervisor.
CAREFULLY + NOUN
anyone, dismayd, i'm, papers, you'll
She carefully examined the papers before signing anything.
PREP.
across, in, until
She stepped carefully across the icy bridge, holding tight to the railing.