His adventurous side
the 'Tooks' are his relatives, who I imagine were not like other hobbits, as they were adventurous and didn't just stay at home
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According to the book the Tookish side of him was wearing off, and when he found them gone with a mess for him to clean up, he was relieved, although slightly disappointed, due to his Tookishness. However, when Gandalf forced him to come along without a hat or coat or kerchief, he was rather put out, and not at all happy with wearing Dwalin's oversized cloak and hood.
There is no one called 'Tookish'. 'Took' is a Hobbit family/clan name, a clan known for being more adventurous than others. To be called 'Tookish' it generally means that a Hobbit is descended from Tooks (ie, Bilbo Baggins, from his mother Belladonna Took) and feeling the call of adventure.
The response was: Fili and Kili looked uncomfortable and stood on One leg, but the others made no pretence of offering - except old Balin. the look-out man, who was rather fond The Hobbit. He said he would come inside at least and perhaps a bit of the way too, really to call for help if necessary.Fili and Kili were embarrassed but did not offer to go. The rest of the group, save Balin, did not even make a pretense of embarrassment and were fine with Bilbo going in alone. Balin offered to go inside a little way and call for help if needed.
Smaug wasn't exactly hiding. He was laying in the main chambers in the heart of the mountain. Bilbo just went straight down the tunnel from the "side porch".
Frodo Baggins is the main hobbit character, due to the fact that the greatest burden is placed on him. There is a lot of discussion about who the hero is in The Lord of the Rings. Many believe that Sam is the hero, the one who represents every man. In The Fellowship of the Ring, Frodo is definitely the main hobbit, as we hear mostly his thoughts and feelings. The same goes in the Two Towers. However, Sam is the main hobbit in the Return of the King, as he is the only one left to continue the quest and he saves Frodo and things are seen from his point of view.