It will depend on how serious your lazy eye is. Some people with a lazy eye have no other external anomaly, so you won't know whether they have got a lazy eye. While some people who have lazy eyes often squints in the eye, especially where the eyes diverge out of line. So it is noticeable and people may know you have got lazy eyes.
Some people with lazy eyes have to squint when they see things, so people can easily tell they have lazy eyes. If you don't squint and have slightly lazy eyes, people will not notice it and they may think it for myopia.