How can I look older?

Okay so there is not category for this maybe it doesn’t even fit here lol. But here’s my question. I’m 27 years old and I don’t really care to wear heels, I’ll wear them if I REALLY have to. I just don’t like feeling uncomfortable and I’m sure many can agree. But now I feel like everyone wears heels. I also look very young. How can I look older, more like my age, or more womanly without wearing heels. And please don’t say makeup lol I hate it, just like heels I’ll only wear it if I HAVE to.