

You can be an extremely hot man but if you can’t converse better than “idk lol” and never ask any relevant questions, you’re unlikely to have a good time. People like when potential matches are interested in them.
Your message I’m replying to seems fine, so that’s promising.
No. A well executed flirt can make someone interested when they weren’t before. You flirt with the cute girl at the party and if she’s receptive, maybe ask her out or ask to kiss. Or not. Sometimes flirting is just fun for itself.
Standing there in chaste politeness is going to create a whole different scene with different outcomes.