Hey perhaps I can help ( I am a girl btw)
what is your main aim? to have sex or find a girlfriend?
if you just want sex, then that can be easy to get, girls now a days seem to be quite liberated, if you meet someone in a night club bar etc, just be pleasant and pay her a few compliments, at the end of the evening say you enjoyed meeting her etc, and that you would like to spend some more time with her, wait for her response, if it is positive then ask her to come back to yours for a coffee
if she agrees, then when you get to the house or whatever take things from there.
for example try to kiss her, if she is okay with that, then you can start touching (her, outside her clothes), if she is okay with that, the undo her clothes and touch her (inside her underwear)
bearing in mind that she should be responsive to all this, if she has not done so, then get her to touch your penis.
if you are both phyiscally ready for sex ( I am sure you don't need me to explain, how you know when a girl is ready), then ask about protection, you will know by this time if she is really up for it, if she says she is on the pill or do you have condoms etc, then umm put your condom on and have sex with her.
like I said the girl will be doing some of the work and pointing you in the right direction anyhow. for example if she is not phyiscally ready then dont push it, wait until she is ready. maybe go down her or something.
If you are looking for a girlf then my only advice is be yourself and take things slowly.
any questions feel free to ask