Antonyms for the phrase "pulls leg" include "sincerity," "honesty," "truthfulness," "seriousness," "earnestness," and "genuineness." While pulling someone's leg can be a humorous or playful act, it can also be seen as deceitful or insincere. In contrast, sincerity and honesty involve being forthright and truthful with others, while earnestness and genuineness involve a true and authentic expression of one's thoughts and feelings. By avoiding pulling someone's leg and instead opting for sincerity and truthfulness, we can foster positive relationships and build trust with those around us.