Collocations for moist - adj.

be, feel, look
Her skin felt moist and feverish.

become, grow
Beth's dark eyes grew moist as she kissed her son.

remain, stay
keep sth
Keep the atmosphere in your greenhouse slightly moist throughout the spring.

very
a little, slightly, etc.
evenly
Try to keep the soil evenly moist.

with
His fingers were becoming moist with sweat.

Moist is used with these nouns:
air, cake, condition, earth, eye, lip, sand, skin, soil