You haven't met my relatives...

/s

I think I usually just clap with them

Stare at everyone with disdain except for one person. Pure contempt for that person. After the singing has concluded. I point at that one person and say “Execute them”. Damn it feels good to be good to be a benevolent dictator.

Find the exit.

Hand out cigars

unzip

Sing with them.

Think about how you're slowly creeping towards death.

Sit and grin?

My manager suggested that the team would sing for me last year in a group meeting. I asked why and she said they should sing because it's my birthday. I had to look on the calendar because she sounded so convinced but it was several weeks until my birthday. Since that she has never suggested happy birthday singing again and I really hope it remains like that.

Smile and clap the beat

Class warfare

This is the greatest comment section ever

I usually just screech loudly until it's over or the restaurant staff come over to intervene

Grin and bear it

The older I get, the more quickly it creeps.

Join in the singing but replace the word "you" with the word "me".

Smile and wave boys, smile and wave

This is the actual correct answer, no?

Sigh loudly, roll eyes, scowl judgementally,

...just like Mom.

Stare at the candles until they burn a hole in your retina

Penis helicopter at finish

Please sir, tell me why
My life's so pitiful, but the future's so bright?
Well I'd look ahead, but it burns my retinas...

https://www.youtube.com/watch?v=DPoW19TUfg8

Makes me think of that hippo pooping except with cum.

the "Happy" in Happy Birthday starts on beat 3.5

Wave your hands towards your face with closed eyes and your head high.

Panic.

The Happy Birthday song is 3/4 time actually and Happy is on beat 3, at least the one I know of.

Ah, the tired looks at third one...

Ah, the hateful looks toward that one hyperactive person that began the fourth xD

yes I stand corrected. I was just thinking it was a grace bar and didn't think any further of it

Look pissed off

Clap and make unwavering eye contact.

I put my arms out like I am receiving their energy and look them in the eyes with a crazed smile.

Run?