Hiya! Welcome to GC!
It's totally OK that you're shy, no-one is going to judge you here : )
If you're a little worried about trying to jump in the deep end of interacting, might I suggest the forum games section? There's a lot of fun things to do, and our current big game is the "who gets this?" game, started by yours truly! XD
Or, if creativity is the way you enjoy speaking, try hopping on over to the creativity sections, home to our guilds of the galaxy , artists alley , and writer's walkway (names made up by me LOL).
Of course, there's plenty more to explore around here! Once again, a big, warm welcome to you, and I hope you have fun here!