How to get free dot?

I'm curious, could you possibly explain to me how one might acquire free DOT tokens? Is there a specific process or strategy that one should follow? I've heard rumors about various methods, but I'm not quite sure which ones are legitimate and worthwhile. Could you provide some clarity on this matter? Additionally, are there any risks associated with attempting to obtain free DOT, and if so, how can these be mitigated? Your insights would be greatly appreciated.