Answer:
The easy way to recognize a linking verb is that a linking verb acts as an equals sign, the object is a form of the subject (Mary is my sister. Mary=sister); or the subject becomes the object (My feet got wet. feet->wet).
A linking verb simply links the subject to the object. The linking verbs are usually a form of the verb to be or become, but other verbs can link. Examples:
Linking: I consider myself a genius.
Not linking: My mother considers me a genius.