Agreed... plus you want to pray for things the congregation is reaching out to do (Kingdom Hall renovation,etc).. on the book study level it's nice to express thanks that the host family has opened their home for that purpose... (like "We appreciate the so and so family for their thoughtfulness in opening their home to be used so we can meet and learn more about you")... when I was married, we had our home used as a book study location and it was nice that the brothers offering prayer ackowledged it...
I like to include a little of what we learned...kind of breifly reviewing how the information we learned applies to us, in my prayers...if I can. It doesn't have to be in great detail, just mention it, because then you acknowledge the spiritual food Jehovah provides...but I think this way shows more appreciation than just saying, "thanks for the spiritual food you provided."
DOH!!! How did I miss that???
it's not a biggie, Dave. :)
You know what, always keep in mind how much of a priveledge it is to meet and worship...in so many countries, they never get to sit in groups like we do.