I am online at SL now since the beginning of March 2009 and it's funny to see how by even entering this virtual world the power of blood can't be resisted. Yes I write in rl too but with one difference. In rl I make money with it :p And no, English isn't my native language but being in SL is a great way to improve that.
I come and go in SL and will write here only about my experiences in SL.
We all arrive at SL with the newbie walk or the so called "Duck Walk". Most of the newbies buy themselves an AO which gives the av a more human walk. The ones that keep the Duck walk will develop at some point duck feet and are going to show "dabbling" behavior. This is ducks tipping themselves face first into the water, (you would see their tail pointing into the air), and filter water through their beaks to harevst food from beneath the surface. However ducks have coated feathers that make them waterproof and avis don't. So the
avi suffering from DFS will sink eventually to the bottom of LL water and drown. Advice to all newbies: Get yourself a sexy or tough walk. There are freebies too!!