Pinpoint Red Dots On My Chest (A couple on my thigh), Not Itchy At All?

I've had one or two of these REALLY small (like a pinpoint) red dots on my left thigh for a while, I've always wondered about them, they're not itchy at all, if I didn't look for them I wouldn't even know they were there. But today I noticed they're all over my chest. What are they?