Lol cool idea for a thread Renee, look forward to seeing people's funny stories!
It was hard for me to pick but there's one that stands out for me. My wife was there at the time and always gets a laugh whenever we think back to it.
What happened was, we were at a buffet for lunch with my parents and our Danish neighbour we're good friends with as well as several of his guests that were visiting from Denmark. Anyway when we got there and everyone was eating I thought it'd be polite to go and get drinks for everyone, anyway one of my neighbours friends had a big bushy mustache and when I put the drink in front of him on the table he quickly looked up at me and didn't say anything, and I had a total brain freeze moment and said "thank you" and nodded, then there was an awkward 2 or 3 seconds where I stood there blankly until what I said sunk in, and I turned around and walked back to the food area of the buffet (had to escape the awkward feeling of handing someone a drink and then thanking them!).
The dumbest part was, I already had my plate of food at the table when I went and got the drinks, so after a little while I just came back to my seat empty handed and hoped nobody noticed. I think it was the blank face he gave me and I was expecting him to say thanks but when he didn't my brain malfunctioned and felt like I had to say something lol
I wonder if he went back to Denmark thinking Aussies have it all backwards and that you're supposed to say 'thank you' when you give someone something, or if he just thought I was a massive spaz hahah