気持ちを隠さず話しなさい。

feeling; sensation; mood; preparedness; readiness; attitude; thanks; solicitude; sympathy; just a little; somewhat; slightly

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to hide; to conceal

to talk; to speak; to converse; to chat; to tell; to explain; to narrate; to mention; to describe; to discuss; to speak (a language)

to do