-100 I'll go through a few of the suggestion in detail.
1) bring attention to yourself. There are two main problems with this advice. (1) There are a lot of people in the class. OP is interested in 1 of 60. If you dress as suggested, you're much more likely to have some dude or fat chick come up to you to ask why you're wearing that crazy shit than the girl you're interested in. You'll be too busy explaining to these other people why you're dressed like a tool to talk to this girl. (2) This works for some people (e.g. Mystery) but doesn't work for many/most. If wearing crazy shit isn't congruent with your personality it's going to do more to hurt you than help you. P.S. It's called peacocking not parroting.
2)Conversation starters I usually sell these, but try "Hey, did you see that fight outside?" This "opener" has been around for ages. Again, two problems with this. (1) There was not fight and it's not your story so you're not going to, or unlikely to, come off as congruent. (2) This opener has been around for ever, widely written about and widely used. Combine this with your incongruence (being that it's not your story) and the fact that you're peacocking and you're going to get called out for reading The Game or The Mystery Method.
4) put her down, subtley and repeatedly. What is being suggested is that you change your relative values. The theory goes that women are attracted to men with higher values relative to theirs. By "negging" her you lower her value thus raising your relative value. Negs can work. However, you have to be careful with these as they can be difficult to delver and calibrate to the target without practice (i.e. be sure to keep them fun, not insulting). Also, negs are a bit controversial... isn't it a better idea to change your relative values by raising your value rather than lowering hers? By buying into neg theory you presuppose that her relative value is greater than yours... not a good starting point.
5)learn magic Reuben's advice is straight from The Mystery Method (not just the magic, but the peacocking, the opener, the negs, etc). If you want to learn about this stuff it's a must read book but figure out why this stuff works and then figure out how to incorporate it into your life. 99% of guys who are very successful with women don't rely on magic. Don't try to become a Mystery clone. It'll be incongruent with your personality (unless you're already a magician... in that case go for it). Further, by doing so you're sending yourself the wrong message. You're saying "I'm not good enough so I need to reinvent myself as a goofy clothes/accessory wearing, magic performing, Mystery clone." I'm sure you have lots of interesting/attractive qualities, you just need to figure out what they are and a better manner of expressing them. You don't need to learn magic.
6&7)touch her hair a lot, and grab on to her arm. This is comilcated, sciencitifc mating ritual shit, but just tust me, when you touch girls hair a lot, it makes them like you. Physical escalation is important but a lot of guys get it wrong. If you don't do it, do it too slowly, or do it too late you end up in the friend zone. However, if you do it too fast you're a creepy guy. Creepy guys get laid as much as friends... they don't. Not all body parts are created equally. As I'm sure you're aware, a girl will let you shake her hand before she'll let you grab her tits. Many guys go for the face/hair much too quickly... these are relatively private/personal areas. Do not go there until you have built up to that point and gotten positive feedback along the way. Here's a link to a good resource, the DiCarlo Kino Escalation Ladder (I have no affiliation with these guys, it's simply a very good, very brief resource), which explains the natural progression of physical escalation
http://www.directnaturalgame.com/Tec...on-ladder.html In conclusion, I'm not trying to bash game. The problem is that it's difficult to take someone's mannerisms (i.e. peacocking) or openers/stories ("did you see the fight outside") or hobbies (magic) and make them work for you. What you need to do is understand why they work and then develop your own material/strategies congruent with your personality/experiences/lifestyle. Further, it sounds like you're lacking some confidence and external manifestations (how you dress, what you say, how you touch her, etc) are not going to magically cure this (although they can help you on your way as success breeds confidence). Good luck!