1. Small public displays of affection such as hand-holding and kissing someone's hair can help a person gain insight into their partner's mind and thoughts.2. You two are too happy, too shiny. Doesn't add up. Something must be going on.3. I just saw a couple passionately kissing each other. Their public display of affection is very inappropriate.4. I saw a couple on the bus making out in broad daylight. They are so bold and audacious. Their act is so conspicuous.