Ok, so this shit should be simple
about conversation: just talk, doesn't matter about what...so as i am guessing from what you wrote, you just want to make out...do a lots of kino man, touch her hair, face, lips...whisper in her ear..also she's probably going to be a bit tipsy...just throw her arm around her, and go in for the kiss when you're ready...also you can use the triangle method. Also what i find smooth is, showing her something on the phone and talking, suddenly stopping and looking her into the eyes..and bam there you go.
But be careful...you might be friendzoned so don't push it too hard, she might not want it...happened to me just yesterday
Hope i helped anyhow, good luck bro