Drivers should be aware that convex mirrors will make reflections look _________.

Many large vehicles have curved (convex, "fisheye," "spot," "bugeye") mirrors that show a wider area than flat mirrors. This is often helpful, but be aware that everything appears smaller in a convex mirror than it would if you were looking at it directly.
Things also seem farther away than they really are. It is important to realize this and to allow for it.