Things I do that makes meeting strangers awkward, if only in my head

I'm an awkward lady sometimes.
  1. If there's over head music I always picture strangers walking in the intro of a their own movie, Saturday Night Fever style
  2. It sometimes takes a few moments for jokes to register in my head and by the time I laugh it's usually too late
  3. I have accidentally shaken a fist bump before
  4. I get car sick easily so it's hard to leave a good first impression
  5. When cashiers ask me if I found everything I needed I sometimes say "I did! Did you?"