CC Madhya 18.24

eta mane kari’ prabhu mauna kari’ rahilā
jāniyā gopāla kichu bhaṅgī uṭhāilā
Word for word: 
eta — so much; mane kari’ — considering within the mind; prabhu — Śrī Caitanya Mahāprabhu; mauna — silent; kari’ — becoming; rahilā — remained; jāniyā — knowing; gopāla — the Gopāla Deity; kichu — some; bhaṅgī — tricks; uṭhāilā — raised.
Translation: 
Thinking in this way, the Lord remained silent, and Lord Gopāla, knowing His contemplation, played a trick.