When you say you have 'two left feet' it can mean you consider yourself to be clumsy, awkward or uncoordinated. Particularly when it comes to dancing or another physical activity. This is an idiomatic expression used mainly in social contexts.

1. I don't think you should dance with me because I have two left feet.
2. Sorry for bumping into you and knocking over your wine, I tend to walk with two left feet.

1. I think we should put some bright tape on the stairs in case someone with two left feet misses them and falls over.
2. I always had ambitions to be in a lead role in a musical, but I have two left feet so I stuck to singing.