When a person is trying to walk in a straight line such as a drunk person, someone walking the slack rope or someone learning to ride a bike/motorcycle they tent to loose balance and move right and left to keep it, how would you call that She was _____ while riding the bike. Thanks!
There are several possibilities. I don't think it would be the same verb with a bike as it would be with walking (possibly on a tightrope).
The first that comes to mind with walking is tottered. Also teetered.
A drunk person would tend to have staggered. If they almost fell down (or if they did fall down) they would have stumbled.
On a bike they would have wobbled.
I'm sure there are other words as well but these are the first that came to mind.