I practiced the closest thing to an inline skating trick that I know, assuming you don't count "standing without falling over" and "moving forward", which might look like a good trick to someone who's never put on inline skates and doesn't know how easy they are to manuever in.
Skating is one of those things that I do without really knowing what I'm doing, like making a pattern or sewing. I have no instruction, no friends who told me how it's done, haven't bothered to read up on the subject: basically, I just do whatever I can figure out on my own. I still don't know how that whole skating backwards thing is done. It seems like I ought to be able to reverse the "moving forward" motions and thereby "move backwards" but I've never been able to make that work.
My one "trick" isn't visually impressive: it's just putting one skate directly before the other and continuing to move. And not falling over. I can turn like this: if I put my left leg back, I tend to lean to the left and thereby curve left. I think that good skaters can actually maintain most of their momentum through these sorts of manuevers, but I don't know how. Me, I'm going solely on whatever momentum I had before I moved my feet into a line, and I bleed off that momentum pretty fast. I can go straight like this, too, but I can't do it for very long. I suppose I could do it for a while going downslope, but I don't like building speed by going downhill -- no control.
Anyway, this seemed like a useful thing to practice, since it's neither so easy that it's trivial, like going forward or doing a normal turn is (a regular turn is really easy. Move forward. Shift all your weight to one leg. You are now turning in that direction. Ta-da!), nor so difficult that I'm likely to plunge head first onto the pavement at any moment. Seeing as I've misplaced the one piece of safety gear I own (I know, bad Rowan, no biscuit), I don't want to do anything very hazardous. Like zooming along as fast as I can. Especially not into traffic. I tend to keep to modest speeds, and I avoid slopes of any appreciable grade if I'm on a sidewalk, because there's not enough room for me to do my usual long back-and-forth turns to keep my speed down.
Given these constraints, I'm more or less confinesd to skating in small parking lots near the apartment. Maybe if I buy a full array of safety gear I'll get to feeling bolder, but until then, practicing figure 8s seemed like a good option. So I did that until I warmed up and got thirsty, then I went back inside. It's very humid outside, despite not being terribly warm.
Now, I think I'll go lie down and read for a bit.