Could be ignorance on my part, but I've always thought those I have "wai'd" to appreciated the effort?
Although I have to confess that I wasn't sure if they were laughing at my efforts.......
That is, until I was getting reading to visit the G/F's family in her village, not for the 1st time. But I need to practice, thought I, no you don't, said she!
Apart from the immediate family, and those who had travelled or driven from nearby towns (Phi Mai, Chumpuang) I met so many elders, youngsters, same age as me 'un's, I wai'd so deep, so often, I thought my head would drop off! After all of that, I came away a fiancee.
I was quite pleasantly surprised by the amount of men, who after "wai-ing" then shook my hand! I personally thought that was a nice gesture.
Then we drank.