I was driving to work on us 17 south bound. 2 white lights flying together appeared in the sky. they were round circles of bright white light. from where i was to where they were in the sky they were about the size of a penny. in unison they flew n towards me. in sharp movements they both traveled e then back. one went s, the other flew n for a little distance. the the one that flew n stopped and waited for the other to join it and they both flew east towards the ocean! i lost sight of them when they flew behind a line of trees. i knew that i had just seen ufos! i know they're out there! i was just happy to have seen one! because i was driving, i didn't have access to my phone to take photos!!