Definitely an indicator of interest and attraction then. You had her attention thats for sure and she was happy around you (smiling) and very in to you it seems. But that could also backfire as you start driving home and they puke in your car or at your place haha.
I hope you get your bravada back and just believe in yourself because self destruction is the worst kind ! Believe you are the best and others will believe it too, it will show.
Look forward to hearing your reports in the near future and as far as IJ, just read in the mens section or use the search tab at the top of the page and find threads about it !
Edit: heres one link to get you started 