What exactly are you trying to do, lift both wheels at the same time? Lift front and then back, or just the front? They are all different lifts, and people use the term bunny hop for all of them. What **I** call a bunny hop is a front wheel lift followed by a rear wheel lift, that's perfect for getting over small logs and similar.
Anyway, it's about weight shift amd pressure on the pedals, not pulling up with the arms. Guys always say, compress and pull up with the arms, but it's a compression with a weight shift of the hips back , the unweighting of the front, that creates the lift.