The only one who tought me something about prayer was my grandmother who prayed with me before going to sleep. I can't recall my mother praying, think she's never done it in my presence (or at all, that's what I'm guessing). My father only said his mumbled 'keep-it-short-food's-getting-cold'-prayers before dinner. At least when he thought about it. Most of the time he didn't.
When I got baptized I was told that I had to 'dedicate' myself to god in a prayer, and that I needed to pray while I was being baptized. I didn't have a clue what was expected from me, so I never prayed a 'dedication'-prayer and by the time I got in the water, one hand on the wrist of the opposite arm and the other hand closing my nose, I never got as far as 'dear Jehovah'... and the whole thing was already done, baptized, out of the water, no time for a prayer DURING baptism. So I called that prayer off as well. I was 17 and although I could answer all the questions in the book, I didn't really have a clue what it was all about!
So looking back, my experience with prayer as a JW (and listening to prayers at assemblies, in the KH and visiting and having dinner with other JW's) is that their prayers are mostly very shallow without emotion, just meaningless blabla. And from the platform sometimes used as 'show off'... "listen to me, using such beautiful words, trying to impress you all"... YUK!