Generally the girls in the bars in kamala are much less pushy than in Patong. But of course it only needs one to decide tonight is your night and then in your opinion, that particular bar has pushy girls. It also depends on how you look, behave and are percieved by the girls, ie I suppose we are now seen as expats and especially myself, its known I have lt gf, so rarely get or see any pushiness.
At the moment livlier bars, potential for pushiness, Appletree, Gecko's, Vienna 1, Bamboo Bar, but these girls will take a no as an answer and if no eye contact will probably leave you alone anyway.
At the end of the day, its easy enough to say no and even easier to vote with your feet.