My UK travelmate and I will often take the same bus home when we're out together. Whenever possible, we'll always pick window seats on the left side of the bus. Then when I alight a few stops before her, I'll get off, walk along the bus till I locate her seat, and she'll always be expecting me. At that moment, we'll grin and wave like schoolgirls sending each other off.

No matter how old we get, I still like this little parting routine.