Caitlyn Jenner's getting the hang of this grandma thing! The leggy lady played with son Brandon's daughter Eva Saturday morning at Trancas Market in Malibu -- their usually meeting spot. Jenner laughed and giggled with her granddaughter while Brandon chatted on his cell phone.

Caitlyn and Brandon sipped on coffee and entertainment little Eva on this brisk and windy Malibu morning. Adorable!