Questions: Flirting

Pick the best answer. If you have something better, please do share your wisdom.

I know my question is asking for the best for directly expressing attraction, but if you think indirectly is better, please comment your best tips.

What i mean by a "cold approached" is meeting for the first time, having a brief conversation, and asking for your number.

The kind of scenario I'm imagining is just introducing myself, having a short conversation, and if that goes well, say that we should hang out,, and ask for her number.

How would you react if a generally likable and attractive guy cold approached you? Would it be a turn off? Enough to turn him down ghost him?
Please vote while keeping that hypothetical situation in mind.

I've done it a few times at my college campus. But have only been turned down or not received responses to my texts.

So what I'm trying to figure out is if cold approaching is a failing endeavor in general, or if I just need to be more personable and build more confidence/confort.

I have not provided "it tepends" as an option because dating depends on the person in general. You're just not going to click with everybody regardless of how you meet them.

Someone I work with, Sara thought I was around eighteen or nineteen years old, so I showed her my driver's license and she said, that I'm good looking. Sara even had to let the co-worker next us know about my look. Thought that was pretty funny! I'm twenty-five years old. I'm not sure, if Sara is single because of what she said about about me. I'm assuming she's single because someone in a relationship wouldn't say that about someone they aren't with. I would like to ask for her phone number, but I don't know how I would do that without coming off creepy or weird.

Started working at a company, that I got hired at a couple days ago. Today, I saw a co-worker of mine, that instantly got my attention. I didn’t introduce myself because I was too nervous and just started working for the company. I know being interested in someone at work never goes right, but I’ll keep things low key.

I know I gotta talk to her and work with her more before asking for her phone number. Not sure how I’ll ask for the number yet and I’m not sure how long I’ll need to get to know her before I do.