Watch the Pop & Snare online guitar lesson by Dmitry Lisenko from Percussive Acoustic Bass (Foundry)
We'll start from our left hand. Memorize the part so you don't have to think about it, and you can concentrate on your right hand movements.
At first, try to play it with the percussive pop without the snare. When we move on to the G string, we have to mute D string with our left hand fingers. Now we add in the snare. Start slowly. Remember the movement. It may feel strange, but keep going, you'll get it. Keep in mind to balance the volume of the snare and pop.