Public Display of Affection generally makes people feel uncomfortable, but as someone in a relationship, I'm not going to shame couples and say "cut it out." There's nothing wrong with showing your significant other a little love and affection when out and about. Little displays of affection go a long way and can make someone's day a lot better. However, there IS a time and a place for everything and some things are better left behind closed doors. Here are things society might be okay with:

Do: Hold Hands

Don't: Put your hands anywhere else

Do: Kiss your partner

Don't: Shove your tongue down their throat

Do: Hug

Don't: grope

Do:

Don't:

Do: Dance romantically and playfully

Don't:

At the end of the day, people might still think the do's are too much so my advice is do whatever makes you happy, just know when to draw the line. People shouldn't feel discouraged or embarrassed to show their S/O love in public nor should they feel the need to suppress their feelings for them so others don't judge them. Let couples be cute with each other. Live and let live as they say.