New
#11
You never said what tablet you got. Maybe there is a manual on-line. I have a Nexus 7 since black Friday and I know what you are talking about. I immediately joined the Android forum. They have subforums for all models and I got 80% of my know how from there. Scroll down on the homepage and eventually you will get to the individual forum links - phones first then tablets.
I am obviously on the Nexus 7 subforum. I learned so much that I started giving advice to other newcomers. It is a nice and friendly crowd and the forums are quite lively. You could also get the Nexus 7 Guidebook from Google Play. Since the N7 is running on a vanilla Android 4.2.1, it may be very similar to what you have.