I am a 5'10" guy with ear piercings and tattoo and decent muscles as well.
In the club I am pretty much an asshole, who doesn't give a shit and do whatever pleases me.
I usually end up grinding a girl, feeling her boobs, her crotch and then she just wants me to go away...
how do I establish some value? I am usually not afraid to escalate and I am not that bad
looking guy either...may be I am too aggressive...
Any suggestions are welcomed... thanks.

stop doing that.

just enjoy yourself in there and make sure people can see that, and don't try and start a set
by griding up on their ass, thats what most normal chumps do. it's good to an extent that you
do what pleases you, but tone it down if you're coming across as an a-hole

This. Don't TRY to be an asshole. Trying to be nice or trying be an asshole is still TRYING. Stop trying and start attracting women.

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Of course they would go away! Put yourself in their shoes, if someone you weren't the least bit attracted to just walked up to you and started groping you, you'd think it was fucking weird too.

Thanks ZED4, Malcolm Thomas, GGplayer for your replies. I agree that straight on grinding, feeling their lady
parts right away is not a good idea, I am gonna do that after some while.

I used to be very shy and intimidated by the club environment before, so I believe this might be a
calibration phase for me.
I cant even count how many girls have said "F O" or shown me the middle finger recently and I have actually
made fun of them to my heart's content after that.

Classy girls respond more to my humor and sometimes even start talking to me after that (strange?).

But I am pretty sure after going through a phase like that my fear of approach has gone away for the
most part, I just got to work on displaying value part.

I guess just a right combination of badness and niceness.

Just like Sasha says, " Better to be a dik than be a pusy" ..... just got to calibrate the size of dik