Tics occurring in the foot region may include wriggling feet and toes, clicking joints and tapping feet. This can affect walking, and be misinterpreted as other conditions such as ADHD.
Clicking toes? It could be a tic.
Kicking a wall? That too.
Tapping feet? Probably extremely common as a tic.
There are many ways tics can manifest. Basically, if you can do something with your foot, it can manifest as a tic.
Depending on severity, there are as many ways that this can cause problems… from long term injuries to not being able to walk in certain footwear.