AB, I keep telling you you are using the wrong association, but that's beside the point.
The R probably threw the U under the bus because he was the biggest target.
But back to the original post, here are a couple...
On a try,(or any play for that matter) Tackles & Guards feet are interlocked...
On a try or FG, at the snap each lineman grabs the leg of the player next to him...
On a running play up the middle,Guard wraps his arm around the center's waist or shoulders...
#97 lines up next to the center....
scrimmage kick formation, R rushes men in through the center/guard gap contacting the snapper...
scrimmage kick formation, R player jumps over the guard who is blocking down...
O lineman in a 3 pt stance, just prior to the snap raises his other arm quickly to point out who he is blocking and says "him". D lineman encroaches....
Ball is ready for play, O-line in their stance, D Linebacker yells out "HAWK" which is the name of the defense they are running, Offensive Lineman moves.