What are you guys saying here ? You are all giving bad advice to the creator of the thread. It is perfectly possible to check a girl out in an obvious way and get her. A few weeks ago I was completely sober checking out the boobs of some girl in the club. I did it on purpose. But I did it very calm and confidently. I wanted her to notice what I was doing. When she noticed, she came dance immediately in front of me, very close to me, with her hair in my face. What happened afterwards I leave for your imagination

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It is not a problem to check the girl out as long as you do it in a confident way. If you check her out like "Oh my God, your body is sooooo hot ... I wished I could have you ", then you are doomed. You are the loser who is desperate to get her so by definition you are a pervert and therefore not attractive. But there is nothing wrong with showing your sexual intentions as long as you come with the mindset "You are sexy and I am not afraid of showing that. I am going to take you right now, right here. That is how confident I am.". If you check a girl out in a confident way, she will like it. So no, it is not a big deal to have checked her ass out if you did it in a confident way.
You don't always have to hide your interest. Think about it. Showing disinterest is equal to having an abundance of women. You have so many women in your life that no woman is special for you. This is attractive. On the other hand, how many guys have the balls to check a woman out while she is looking at him, and then look into her eyes and smile at her ? Most men are scared of doing this. Only a guy having abundance of women in his life is capable of pulling this off and therefore it is attractive. But if you check her out as a drunk loser, then they feel pity for you. They will think like "This loser first had to get drunk to get some courage and now he is checking me out like a desperate little boy ... yuk!!!".