I have a maine coon american shorthair mix (great hunter) and he's almost 3 yrs. old, but he is not very social and does not like my room he goes in my sisters room but not mine! he's an indoor/outdoor cat and i have no plans to make him indoor so don't go saying indoor cats live longer and are healthier blah blah blah. and he doesn't like the shelves i have in my room im planning on adding more though... so is it possible to make him like my room more and not there's and to be a cat that is more outgoing and willing to jump up on the shelves. HELP!