Posting to TikTok outside the US

I'm fairly new to posting to TikTok and I wanted to know if it's possible to reach a US/international audience when posting outside the US. I live in the Caribbean and I recently posted something and everyone who liked it were either from my country or the Caribbean/local. What does it take, or more importantly, how long does it take for people abroad to see it? I don't have a business or anything, I just want to engage with people