Replying to Popping and Looking Good

Hey guys... I am fairly new to park skiing, and actually fairly new to skiing in general, and am having trouble with a couple of things... First off, I feel like I can barely pop, and therefore have trouble with things such as spins and 2's on. So, how do you guys suggest adding a bit of height to this? Next, when I watch video of me hitting rails and such, I feel like I never really look good. I can do the rail just fine, it just looks like shit. I don't know if this really comes down to just being comfortable on the rail, but how can I try to look a little better on a rail? Thanks...