Pointing gestures are especially likely to be incorporated into the grammars of young, emerging signed languages: they are pervasive in everyday talk, crucial to face-to-face communication, and visually accessible to the deaf signers who create these languages.  In this talk, I trace the grammaticalization of pointing in three young sign languages: San Juan Quiahije Chatino Sign Language (Mexico), Israeli Sign Language (Israel) and Al-Sayyid Bedouin Sign Language (Israel). I show how signers of these languages adopt and adapt pointing gestures to serve a set of increasingly abstract grammatical functions.