[shalstudent]

See if the below gives a clear picture:
Reflexive pronoun "reflects back" to the subject of the sentence and is the object of an action verb, an infinitive, or a preposition.

For example:

I gave, myself, a treat.

In the above sentence, "I" is the subject, "gave" is the action verb and "myself"(which refers to the same person as the subject) is the object of that verb and it reflects back to the subject of the sentence.

Now let's see this sentence:
You should buy a gift for your children and yourself.

In this case again, "You", is the subject and "yourself" is the object.

In the sentence, It was very nice meeting you and Bob,
The use of words you and Bob are right,
because because the subject of the verb in the sentence,is not the same person as the speaker.
"It" was nice meeting.... which simply means that "I" , "We" or "they", had great pleasure in meeting you.