Mine is a mix between the not very subtle, "well, we should just be in the hot tub already" or "I think me and you need to be cuddling, let's go" and extreme teasing which leads to criticism. There's a certain girl that sets off all of my emotions but it is completely off limits. She knows I like her and our conversations turn into constantly criticizing her. I can't help it.
I flirt but don't take it further than that. I'm not much into dating. I just don't get the point. I'd rather find a hobby to invest time into than spend time on a date with someone that I barely know. It's weighing the amount of fun of each. Conversing with a stranger that I'm only sexually attracted to and likely share little common interests with is about as interesting as poking a skunk with a stick. I'd rather do my own thing and just wait to see if a relationship evolves spontaneously and naturally.