Welcome to our ranks-hope you're having a blast
To answer your question you can award from either side.Just make sure you take the step out wide and follow unless its a net or center line that you initiate.For example-
A.You have started transition on contact of serve when the ball is downed for a Ace.Complete the transition and then make your step out and complete your sequence.
B.You are already on the blocking team's side when an attack from team A is shanked into the bleachers.Since you are already on the blocking team's side wait for the ball to be ruled dead then step out and complete your sequence.