Went to a wedding yesterday of OH's nephew. Lots of his distant family in attendance that we hadn't seen for ages. As we were leaving I said goodbye to my SIL's BIL. I wasn't sure exactly how to do it as I don't know him very well so I put my hand out & he shook it(!) & I kind of leaned in for a hug (as I'd hugged his wife goodbye) but it didn't quite work out as he's really tall & I ended up just putting my cheek on the jacket of his lapel and just staying there for a few seconds as I didn't really know how to finish the very awkward move. I then stood back up straight and mumbled "goodbye". There should be a rulebook for how to say goodbye to people you like but don't know very well 🤣