“Look!” The Greek word is idou (#2400 ἰδού), and it is used to get our attention. See commentary on Matthew 1:20 (“Look!).
“clubs” The KJV has staves, but the Greek just reads “woods” leaving the reader to figure out what the people were carrying that was made of wood. Since many people carried staffs, it would be natural to say that, but staffs were hard to fight with in a crowd and the association of this weapon with swords makes “clubs” the more likely choice.