I am 18 years old.

My body structure is just very good for bear mode, I think; thick wrists, very broad shoulders, I am 186cm =~6'1 etc.

How can I get into the bear mode? I am talking about this:

http://i49.tinypic.com/2qch7b7.jpg

https://25.media.tumblr.com/tumblr_m86f3vxq1X1rbf9fjo1_500.jpg

https://31.media.tumblr.com/5fa0ad9d658f68eb5e6a2b89923b7bca/tumblr_mrdya0RljP1rgd95co1_1280.jpg

Ready to do anything, except steroids. I just don't want them, not biased etc.