My greatest ever QSO total (50) was on a one pointer (G/NP-029) so it seems chasers are happy to chase regardless (and I am grateful for that).
As for QSO format there is no right or wrong way to do it but keep it short and sweet. As a novice chaser you will probably be happy with that but it will also help the activator, especially in winter conditions.
My usual format is something like:
G4TGJ/P: CQ SOTA DE G4TGJ/P K
G4TGJ/P: DC8YZ GA 55N 55N BK
DC8YZ: GA RICHARD 55N 55N 73 GL TU
G4TGJ/P: 73 TU
At which point I brace myself for a cacophany of calls. The advice to be off frequency is good, otherwise all the calls merge together. If you send your call and hear nothing, send your call again. But please listen and make sure you don’t call too soon or on top of someone else. And always give precedence to S2S stations.
I often don’t send GA but will sometimes add a name if I know it. Also you don’t have to send my name - it’s nice to be greeted by name but it does also slow things down on a cold summit.