How do you get the Silly Smooch to show?

I'm also missing this, but tons of animations are missing for me.... Literally tons, it's honestly ridiculous this was released in this state. Also, the only gameplay is literal repetitive dates. 

I suspect this is a new type of kiss in the new EP?

Going from the name, I guess your Sim(s) need to be in a playful or very playful mood. 

It's potentially buggy  since some can see it yet it's invisible to others. This has happened before with other interactions and a patch fixed it.

I've been told on Twitter it's under the funny section but I don't see it there.

I am not sure why they call it silly smooch. To me it looks like he stole a kiss, maybe it's under mischief? 😚

It's not under mischief I checked. It's supposed to be a funny interaction. I'm concerned this interaction is invisible for some people and thereby It's bugged.

I found it under Funny-Silly behaviour. It was pirate day and my sim was on romance skill level 3 I think.

Check to see if your Sims are in a wholesome relationship. Some are saying it's limited to that one. 

How do you get in a wholesome relationship?

There is another kiss missing as well that was shown it's were Bob Pancakes puts his finger on Eliza's lips that is probably under funny as well. Does anyone know what it's called?