Honestly, I'm not sure. Sometimes I take MDMA and I'm jumping all over the place, charged up, talkative, ready to rock it out for hours on the dancefloor (this isn't referring to pills cut with speed, those are a whole other matter), other times all I want to do is close my eyes and melt into the couch in bliss.
It's kind of annoying actually, sometimes I get 'munty' pills when I'm out clubbing and really want to dance, but I can never motivate myself to get up because being curled up on the couch with friends just feels soooooooooo good. Then I get cut in the morning because I missed DJ's I payed a lot of money to see.
Would be interesting to figure out what causes this difference between energetic MDMA highs and relaxing MDMA highs, often it varies even when taking MDMA from the same batch.