"At this I went aboard, and gave the word/ to cast off by stern." (20-25) This is telling you how he went in his crossing ship to find out who the mainland natives were, also know as Cyclopes.
"swung/ high overhead a slab of solid rock/ to close the cave" (89) This is telling us how Cyclops closed the cave not knowing people were inside of it.
"but in one stride he clutched at my companions/ and caught two in his hands squirming puppies/ to beat their brains out, spattering the floor." (135-140) This is when he got one of his men and ate them.
"Even as he spoke, he reeled and tumbled backward,/ his great head lolling to one side: and sleep/ took him like any creature." (225) This shows how Odysseus and his men blinded the Cyclops after giving him wine to drink.
"Three abreast I tied them silently together, twining/ cords of willow from the ogre's bed;/ then slung a man under each middle one to ride there safely, shielded left and right./ So three sheep could convey each man." (280-285) When Odysseus straps his men under three sheep so when they open the door the sheep can go out, but the men are still on them.
"But it fell short, just aft the steering oar,/ and whelming seas rose giant above the stone/ to bear us toward the Island." (400-405) Odysseus and his men sail away after the adventure in seeing the Cyclops.