"FWIW, Reb Ahron Schecter holds the Choson & Kallah hold hands from the chupa to the yichud room (even though Reb Ahron doesn't hold from the Mitzva Tantz.)" (source)

"Where are you holding in your learning?"

"Where is he holding in his Shabbos observance?"

"He holds by Rov Miller."

"With all that handshaking, I guess they're holding by an agreement." (Weiser)