What does too mean after a pronoun?

A pronoun is a Word that takes the place of a noun in a sentence. A pronoun functions the same as a noun in a sentence.

The adverb 'too' can follow a noun or a pronoun to modify the verb as 'in addition to', 'also'.

Examples:

He too has a graduate degree. (he also has...)

Your parents are invited. We have enough seats for them too.

I like this puppy. He seems to like me too.