Showed up with people in my hall who I barely knew. I got there and it was a majority of guys. All my close friends didn't go so I didn't really feel instate mingling with people who i barely knew. I headed downstairs and danced a bit. I spun a girl and then grinded for a bit but she dropped her drink some how and then we just broke off from there. I told another girl who i met earlier in the party to come dance with me. I placed her arm around me jokingly as we moved to the floor. When we got there she asked if I was gay and that I sounded gay. I was like are you serious and then I started denying it while just escalating. She walked off. I started dancing with myself at times and a girl approached me. Here's where i fucked up:

She obviously wanted to dance with me, instantly grinded. After grinding a bit I wanted to escalate further to a make out so I tried to turn her around, she was kind of just intent on grinding and didn't wanna turn around, i tried to spin her but it didn't really work out and seemed forced. She ended up spilling her drink and we danced a little bit when I got her turned around. I then tried to go in for the kiss but she refused and backed off. I felt like I moved too fast, She wasn't even looking at me when I went in for the kiss, I think I should have just grinded and waited if she showed anymore signs that she wanted more.

Later in the night I approached a girl and asked her to dance, she said you was waiting to play beer pong. I tried to rationalize that dancing is more important in a joking way, she said after her game. Later I found out she had a boyfriend and she ignored me the rest of the night.

Questions: Is it better to just go with the grinding or take a bit control on what to do next? How do you transition from grinding to kissing? How can you spice up the grinding so the girl does not lose interest early? How do you transition to a wall while grinding without being forceful or too pushy with the girl? How do i get girls to stop fucking dropping their drinks? What can I do if a girl denys my invitation to dance downstairs, I feel like theres not much to say at that point if she insists on not dancing Where did I fuck up in general and how can I improve?