I don't know if others will flame you for these two posts, but I think you'd get better treatment on the Newbie Board with stuff like this.  Oh, right!  This IS the Newbie Board! LOL!
Anyway, here's my advice:
Re kissing, I've had one girl give me advice and, if it's carefully done, it's easy to accept.  I often will ask a girl how she'd like me to DATY her, or other things, because each girl is different and I want them to enjoy themselves as much as possible.  The more they like what I'm doing the more likely they'll be their best when I'm on the receiving end.  It's called enlightened self-interest.
Re coming too quickly, a lot of guys who worry about that jerk off an hour before a session.  But you need to know your own body well enough to figure out what works best.  For me, the ideal way would be to book a 1-hour session, come as quickly as feels right, recover and go for another pop after that.
Good luck, as I assume you are talking about yourself in these posts.

I ain't paying upwards of $300 to get a lecture from a provider.  However, the provider has right to decline kissing or any other activity if she chooses to, for whatever reason she chooses to (bad breath, too aggressive, bites lips, teeth like dracula, chews tobacco....)

Seems from the post that you lack confidence. I learned to kiss properly before the age of 18. It ain't rocket science. So figure it out..

-- Modified on 11/18/2012 3:42:18 PM

I most likely phrase pointers like so;  "I like it better when you" ... I'm a terrible actress.

You simply have to go with the flow and with their rhythm/speed and what they're doing.

Pointers:
have the best breath possible and clean your tongue.
don't rush the tongue.

Differently! I have only met about 3 or 4 "bad" kissers in my life. I find that most people just go with the flow and two different styles will meet in the middle. It's fun to explore! I believe that each of us affects the other in our ways of kissing- it's a give and take.

The worst kisses are those that just shove a giant tongue in your mouth without any little lip pecks, or are super saliva-ey, or are just big dead hunks of flesh in your mouth- with no or very little movement.

But in answer to your question, no- I would never presume to tell someone they suck at kissing. I'd probably just do other things with my mouth to avoid a kisser that I found revolting. But it hasn't happened yet.

The gals generally do wonders with the guys that walk through their door.  If you are shy or inexperienced, YOU should take the initiative to choose a well-reviewed newbie friendly provider...  and then when you are together, she''ll likely ask what you like & you ask her for guidance instead of trying to fake like you know what she'll like.  I find being a gentleman, accepting guidance yields improved skills.