I have friends coming from Toronto, Canada arriving at Port Authority in NYC. What will be the gate, street and level that will be? so this way I know where to pick them up thank you.

Your friends can actually get the info from port authority bus service. It is at the lower level

The lower level is the final park.Yoi ask for directions from the guards.You have 30 minutes free WiFi which uou can direct your friend to where to pick you up

Not really. I suggest keeping in touch and have them come outside to meet you at certain time and place if you are driving but if not driving then go to information window when you walk in for gate numbers...

8th avenue and 42nd Street lower level,not sure of the exact gate where they be arriving at.

The bus will be coming in on the lower level, all buses arrive and depart here on 8th st and Wesr 42nd St.