Gender announcement?

I won’t find out the gender until my next appointment which is at 18 weeks and is a week away from Friday. And my bf wants to know the gender AT the ultrasound, so we won’t be able to do any gender reveal cake or anything like that. So what’s the best way to announce the gender to friends/family through social media? I’m kinda eh about it, since it won’t be super special/fun because it’ll just be generic pictures of announcing it. So what are some fun ways to announce gender without making it “gender reveal”?