Genesis 3:9

And the LORD God called unto Adam, and said unto him, Where art thou?

1. The LORD God appears to have been unable to locate Adam and Eve in the garden, so He called to them.
2. The LORD God's behavior here is interesting. Either He was unable to locate Adam and Eve (suggesting He is not very intelligent), or He didn't have the patience to persist in hunting for them (suggesting He has an impatient, not very loving nature or has too busy a schedule to put up with childish behavior), or, knowing they were hiding in the trees, He gave them the choice of coming out of hiding or not (suggesting an extreme regard for their right to choose). As a very imperfect parent, I relate most to #2, but this is not just childish behavior - it's disobedience and fear and shame. It seems to me that understanding the LORD God's motives here is a key to understanding His character and actions in relation to the world population in general.
3. The garden of Eden must have been relatively large.