Functioning, practicing/Drags you by your hand/Unison only/To the hand
Once again, who knows what the “number man” dragging you “by the hand” particularly means, but it’s a good excuse for Segall to get Zeppelin-y some more on this slow rocker, finishing with an almost two-minute dual guitar solo. It borrows from cliché (e.g. hair metal “yeah!”), but isn’t overbearing.