As someone said a little earlier, there are no good people, hence no good Christians. We're all sinners, and that's the take away from the faith. We all do things that are sins and will continue to do so. Jesus that people were going to falter, and it's the reason that He had said to love and forgive one and other. Accept you're a sinner, bear and take up your cross, and follow Him.
All these questions seem redundant to even ask because we know how we should act out in public and we know how to celebrate holidays. If you wish to celebrate Halloween, go ahead, but just don't worship Satan and promote evil. If you want to have an alcoholic beverage, knock yourself out. Jesus drank wine because He enjoyed it. There's wrong with enjoying things like that, but just don't become an alcoholic. In other words, don't let that be the center of your life. Jesus also hung out with non-believers and made them believers through His Word and action. So there's nothing wrong with making them friends, but make sure not to be tempted into things that go against God's Word.
Basically everything asked here should have already been addressed from our parents/family members/foster-parents/guardians raising us. You KNOW how to act. The only thing here to ask do you CHOOSE to follow through on what you've been taught? Sexual immorality is something to avoid, but many people CHOOSE it anyway, Christian AND non-Christian. In other words, you CHOOSE to sin to make yourself feel better, even though it will cause more damage to yourself and the person(s) in front of you. That's part of the reason why we should avoid sin as much as what we can, but we're weak.
Same things can be made about dating. I see some on here that didn't like my last thread I made on here, which is fine, but this is where I was going with it:
For the men, do you choose to give into following the advice of others that don't even follow it themselves? They say we have to put on a song and dance for women in order to attract them. The answer to that is no you don't. They say personality is also what you need, so be yourself. It helps, but that's only partially true. You need to have some sort of physical appeal. Nothing overly sexual, and that's not where I'm going with this either. Dieting, working out, dressing better, and how you hold yourself up ARE part one on how to attract a woman. You're showing that you care for yourself enough that you took the initiative to look better, giving off a vibe that you want to be taken seriously. I noticed that when I was dating. The people I was with treated more like a mature adult rather than a kid. Dress like a slob or too goofy looking when you're noticeably out of shape, than they don't. And let's not play games here, women go for the guys that are attractive. David, before he became king of Israel, was described as a good looking man, which means he took care of himself, and he was also described as a man after God's own heart. So long as we stay faithful to God, there's nothing wrong with looking good, and feels great when someone, especially women, says we do. Only question is do you want to go that route?
For women, are you looking for a man that strives to do good and has standards and preferences based on their faith, or do you desire men who are selfish and will only go out with you to have bedroom fun? You listen to those that, more or less, tell you that a custom made man, by your own design, is the only thing that matters. Sure, the things you're looking for are great, but why go over the top with some of these other unnecessary qualities? And why force onto other men that may not possess them? That makes no sense whatsoever. I understand there are men that do that, but there's no need to do it yourselves. If you like a man the way he is, then allow him to take you out. Chances are good that he's not perfect, but you're not either. That's okay though because if he's a caring person towards you and others, that he means well, and he has given his life to Christ, that should be enough. And if you do want to be with him, you HAVE to allow him to lead. As a ballroom dancer, it's vital that the lead leads. Otherwise, the routine won't work. This also symbolizes and honors what Christ does for His people: He leads and we follow. Remember that.
All this, though is where we get into trouble as Christians and trying to have people believing in the truth. Many of us who proclaim ourselves as followers in Christ come off as arrogant, condescending, and extremely judgmental. Many of those same Christians don't take the time to sit and LISTEN to what's happening in a non-believer's life. Instead, we jump in so quickly to condemn them rather gather all the facts and information about these people. Being civil towards them seems like a task at times. Christ took it upon Himself to hear out what these people had to say. He gave truths, but was never harsh nor condescending towards these people. In place of that, He gave solutions, which led to real hope. That's how He was able to make friends out of them. So don't try to be perfect nor put on that persona that you are because you're not. But if people see that you're just as vulnerable as everyone else, while standing strong in your faith, people will come to you. Even though we're not entirely good, there's nothing wrong with trying to do good.