Read the following context and answer the question.
Context: Zach had somehow reserved the banquet room , though we did n't have nearly enough people to meet the minimum . Still it was nice to have our own room to sit around and tell old stories . After a relatively quick dinner , we moved on to stop two , the Bricktown Brewery . There we drank like half a keg along bit of liquor , while playing poker .
Question: What did Zach do before reserving the room ?
Answer:


Checked the number of participants .