She was feeling down, so I tried to cheer her up
Come on, cheer up! Things will get better
He cheered up considerably after hearing the good news
I attempted to cheer up my friend by telling a joke
Let's cheer up the atmosphere with some music
Hey, you seem a bit down today. Everything alright?
Yeah, I'm just stressed about this big project deadline.
I understand, project deadlines can be rough! Maybe a break would help, or something to *cheer you up*? What do you usually do to de-stress?
It's okay to feel sad, but try to cheer up!
It's alright to be down, but try to feel more positive
Don't worry, try to lift your spirits
There's no need to be gloomy; try to be happy
Things will get better; try to look on the bright side