THis is an excerpt from Whiskey & Ribbons by Leesa Cross-Smith. The man speaking is at his brother's wedding, where he's the best man. He's giving a speech.“<-----Excess quote removed by moderator (Florentia52)----->I knew he’d marry a woman who was perfect for him. <...> I know this without a doubt. Dig. He’s making the face, <...>” I said, pointing over at Eamon and Evangeline, both of them so bright with smile.
What does dig mean in this context? Couldn't be literal digging, could it?