Jason, totally agree the girls can smell weakness. That said, I think there's more to it that's worth talking about. Strippers are far better at sales, and at understanding their customers, than we give them credit for; some are amazingly talented, instinctual sellers. When they smell weakness, some of them up their level of pressure, and it often works. When I say weakness, if you're too scared to tell a dancer "no thanks", and instead use a passive-aggressive "maybe later", it is absolutely the case that the girls know you're somewhat intimidated already. Many of the passive aggressive tactics customer use are instant tip-offs: I'm weak, take advantage of me, I'll cave to avoid confrontation, I am so afraid to say no that I'll make up lies so feel free to engage me in a "why not" 20-questions session to try to intimidate me into it.
Here's a true CH story that's played out for me over and over. There was a confident dancer years ago named ... Brooklyn, maybe? She did an okay lap dance for me, not one that inspired me to tip her. She looked me in the eye and said sweetly "do you have a tip for me?" I looked her in the eye, smiled, and said sweetly, "I don't tip, I do more dances to show my appreciation, I'll let you know." I held her gaze, she looked down for a second (not making that up), then almost stuttered "oh ok" and smiled. Confident but sweet and respectful is all it takes. No thanks, I don't want a dance (no more explanation than that, ever). No, I don't tip. Eye contact and smile. It has really improved how much I enjoy even higher-hustle strip clubs, now that I'm not intimidated by the girls in underwear ... and I swear, they can pick up on it right away, in many cases, and are a bit less likely to try to strong-arm me into tipping or anything else. It makes a difference.
In the alcohol-serving clubs, I ALWAYS go straight to the VIPs, never do $20 try-outs or anything. I've gotten asked for a tip once in the last 3 years (I said no) and never been hit with the kind of massive upsell people are describing. Part of that is because CH's girls are particularly aggressive, part is because most girls know I'm a regular (strippers are far less aggressive with known regulars), and I'm convinced at least part is confident un-intimidated demeanor, I think it's made a difference (or maybe I"m getting just as much hustle but just don't care anymore). That first "I don't tip" set me free.