Andrei felt the air change around him, people getting more active and frantic as they started dancing around, bouncing to the beat of the song. Mosh pits were always different: one at a ska-party had a different vibe than one at a metalhead concert. This one was electronic: people were fierce and hopping, but not actively violent. Andrei was enjoying himself; the people who bounced against him felt as if they were bouncing against a brick wall.
When he saw Rob, Andrei pounced with a grin, using his weight to slam against the giant.