Help me style a navy blazer please!!!

[jennystears]

I've always wanted one and had 'buy now' pressed before I knew where I was in the Marks sale.
I just don't know how to style it .. please help!
I'm a proportioned size 14 and 5'7" (with a bit of a bigger belly lately it must be said ) and open to all ideas, thanks.
I'd like to wear it casually but also on a night out. Thanks

Have a look at Emma Hill on insta. She has lots of blazer looks. As does Leanne White.

Thanks!

I think grey and navy together can look very chic...