Hahah there's no specific technique to use ^_^
You start off with just basic kisses on the lips, and open gradually until you become comfortable with what your partner is doing, and learn to work with one another's styles.
I've kissed two girls who have had a perfectly compatible technique to mine, and it is very pleasureable
I've kissed two who hardly open their mouth & don't really use any tongue, and I've kissed a couple who were very aggressive with it & got into it right away.
I was told I kiss like a girl (by a girl o_O) so I dunno what to make of that. Probably a good thing, it would suggest I kiss differently to other guys she's kissed before :P