One of them was the fact that none of the dwarves really liked him or trusted him. That is, until after he discovered his Magical Ring.
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The loss of their supplies into the river. That led to their encounter with the trolls.
Because Bilbo wanted to sneak away from the camp to go see the Dale men, and he wanted to do it in secret.
Balin is.
The Mountain
Bilbo saw more and more trees in all directions, as well as the sky.
Bilbo wants a looking glass (a mirror) in order to see himself in the elvish armor he attains from Thorin in the old dwarvish palace under the mountain. He thinks he must look rather ridiculous as far as hobbits should look, but still has a desire to see himself.