Is this normal ??? Need help

My girl is 5.5 months and loves to stand supported by me... I just noticed that when she stands she generally puts one leg ahead of the other... I think that's mostly for support? She also tends to tiptoe on one leg while keeping other firmly planted... its generally the right one tiptoeing while left is planted... I tested she can support her weight on right one without a problem... has anyone else observed this... the tiptoeing on one leg and the fact that they keep one leg ahead of the other??