It should be a quite natural one.
Because of the surety of the date, looking is quite natural. The conversation should never get that deep where touching, a grab around the waist, a touch on the thigh isn't allowed. The atmosphere should be sexually charged at all times. Even if it does get that deep (as it can with women), being cut off by a kiss is not such a bad distraction.
For me, the only reason that conversation period is necessary is due to short notice (1-3 days) meetings for first time friends. What I have found that works for me is getting the conversation out of the way pre-appointment. Especially when there's undeniable chemistry, and we have a lot in common. The earlier a gent is screened, and we've got those initial emails out of the way about our interests, our phone conversations can become a bit more intimate. Usually, my intentions are made known, either through text or phone call that I intend to ravish him straight away.
Also, I have been known to come to the door in nothing but my undies under my coat. That helps too.