think twice(v = verb.communication) - consider and reconsider carefully; "Think twice before you have a child"
is one way to consider, debate, deliberate, moot, turn over
Sample sentences: Somebody ----s

VB  be cautious, take care, take heed, take good care, have a care mind, what one is about, be on one's guard, make assurance doubly sure, bespeak, think twice, look before one leaps, count the cost, look to the main chance, cut one's coat according to one's cloth, feel one's ground, feel one's way, see how the land lies, wait to see how the cat jumps, bridle one's tongue, reculer pour mieux sauter, let well alone, let well enough alone, let sleeping dogs lie, ne pas reveiller le chat qui dort, don't wake a sleeping cat, keep out of harm's way, keep out of troubled waters, keep at a respectful distance, stand aloof, keep on the safe side, be on the safe side, husband one's resources, caution.

think, think about, think back, think factory, think nothing of, think of, think out, think over, think piece, think tank, think the world of, think up, twice, twice told, twice told tale