For me personally, any date (whether with a new acquaintance or old friend) is a dance. I prefer for the gentleman to set the tone and pace; I will follow his lead.
Thus, my YMMV is almost entirely dependent upon, and determined by, my clients' behavior.
But to answer your specific questions:
Posted By: Blaze81
1) Your mood
This has little to no impact. If I'm really in a rotten mood, I may try to cancel and take the day off. But I can usually get out from under my dark cloud for the length of my dates. The only time it might creep out is when the gentleman in question does something I don't care for.... usually I will brush it off, but if my patience has already been worn thin that day, I might forget myself and chastise him soundly for said transgression. But then, some men like that. LOL.
Posted By: Blaze81
2) How attractive the guy is to you
Physical appearance is completely irrelevant. But if the man's personality/demeanor is very pleasing to me, I will be very attracted to him. and thus he may feel that we "click" more than the next person.
Posted By: Blaze81
3) The length of appointment (I would think longer ones definitely increase the odds)
Increase the odds of what? That the provider might go a little more above and beyond than she would with her minimum time booking? For me personally, I don't do anything differently, or extra, with a 3-hour than with a 1-hour.
Posted By: Blaze81
4) The gent's hygiene
Definitely has an impact. If the gentleman has halitosis, I will try to soldier on as though it doesn't bother me, but I will admit that I'll pull away and attempt to focus on other activities instead.... without being too obvious about it, of course.
If the man's hair "down there", is very long, wild, unkempt.... I will not initiate any licking, kissing, or sucking of the boys unless specifically requested to do so. I will still do it, but I'm sure my enthusiasm is noticeably lacking.
Posted By: Blaze81
5) Time of appointment (For example, morning versus the afternoon or evening)
If the date occurs right at the end of my availability for the day, I will not be as inclined to let him stick around and chat after the time he paid for is up. Usually, running over by 10 minutes or so is not a big deal; but when our time is up & I'm trying to leave to avoid rush hour,or to make it to my nail appt on-time, or whatever.... I'll clearly say that I have to leave soon myself, and he can talk to me while I get packed & dressed, but that I really do have to get moving.
The only exception might be if someone I've already met asks me for an early morning date (earlier than my stated schedule) then I may accommodate him with the forewarning that I might not be quite as glamorous as when I have more time to get ready. Why? Because I just don't want to get up any earlier than 4am, thank you.
But my energy, enthusiasm, demeanor and services will still be the same.
Posted By: Blaze81
6) Is the gent a "first timer" or a "regular" (This one has to be the most important)
Yes, this can definitely have the most impact. Whether my recollection of the person in question are wholly favorable or otherwise, I cannot prevent my demeanor from being influenced by that. Although, sometimes a person's behavior can be completely different from one date to the next, both good and bad.
And, as mentioned earlier, I take my cues from my guest. Whether or not we've already met, if you walk into my location and warmly respond to my overtures (I usually will quickly move to embrace and kiss you immediately upon your arrival) then we're off to a great start which will likely continue......
On the other hand, if you avoid my touch, or brush off my physical advances and then proceed to stand 10 feet away from me while asking interview-like questions, you may find me to be a little less than open, perhaps even standoffish or matter-of-fact in my conversation and approach. One of my reviews was from a gentleman did just that, and then termed my mood to be "businesslike"... and I cannot disagree. He set that tone, and I followed his lead step for step.
So be careful what "vibe" you are giving to the lady. I'm not submissive, but as I want this experience to be all about my guest's comfort & enjoyment, I cannot help but think that if he takes a clinical approach, then that is what he wants... and that is what he will receive from me.
I personally would prefer all dates, especially first dates, to be more on the level of a horny, casual hook-up. Walk in, start with a nice kiss and some groping, maybe a little chit-chat/small-talk in between breathless embraces, and then awaaaaay we go!!!...... (yes, I watched the Derby yesterday lol) So perhaps it would be more fair for me to say that I will lead off, but then the ball is in YOUR court.
Thus, I honestly believe that my YMMV is almost entirely dependent upon the other person's ACTIONS, and anything else have very little affect