Pop the plugs out too so as to reduce the load on the starter/battery & to increase the cranking speed.
The objective is to ensure that you get some oil pressure up to purge air from the oil galleries.
Once this is done, you can start the engine & be confident that you have no dry parts moving against other dry parts.
You might squirt just a little oil down the bores to help seal the rings to ensure that you get full compression pressure when cranking & to lubricate the bore/rings untill they are lubricated in the normal way. Only a squirt or too, no more.