[cube2222]

You may be confused. I've spent 9 years in a music school, and whenever there was an exercise to tell the measure by listening to the music I've always been confused how others manage to discern 3/4 from 6/8. Or 2/2 vs 4/4 for that matter. However, I've got the hang of it in the latter years. Point being, this is something that just requires some bigger time commitment to learn.

Basically you try to hear what groups of notes are "played as one". You also hear how the accents are distributed among the notes. It's easier to get the hang of it if you have to actually adhere to it when playing an instrument.