It’s human nature to feel intimidated or uneasy in proximity of strangers. Until we don’t know their intentions and temperaments, we tend to struggle for keep safer distance to flight or fight if any sign of danger emerges. Even if we know others, we respect their private space and let them feel more comfortable and express intimacy only when it's acceptable in given situation. Like commuting by public transport, we share common and limited space in elevators and more often, we encounter strangers at very close distance.
Following things would not lead us to any unwelcoming situation or embarrassment:
1) Don’t call anybody by their names, share jokes or touch them. Don’t use any sign language that other may not interpret.
2) Don’t talk until its emergency. Don’t gesticulate, laugh or make any kind of facial expressions or noise if possible.
3) Maintain straight posture and don’t lean at anybody. Don’t appreciate or show any intimacy towards person you know.
4) Don’t look at anybody and keep your gaze straight and upward. You may look at the floor counter or simply mimic reading magazine or newspaper only if it doesn’t touch with body of others.
5) Keep your voice low if you need to attend call on cell phone.
6) Don’t hurry to get out of elevator until you don’t stand close to exit door. You may simply request others to make way to it.
7) Keep baggage in your hands hanging and don’t juggle with it.
8) Kindly request others to push button if it's out of your reach.
9) To cut this icy situation, you may simply address everybody by line “It’s nice day today.” in decent tone. Seasonal and festival greetings are just great!
10) While existing elevator, saying “Good bye”, “Have a great day” with hand wave and decent smile would certainly help dwellers feel nice.
Perhaps, you may find yourself and many persons following these etiquettes unconsciously.