At the Old Roller Mansion, find a person walking near the cliff. Go to that person and throw them off the cliff.
At the observatory where the binoculars and a hidden CD are located, toss somebody there into or near the water to get an easy 207 respect and unlock the achievement.
Play the Crowd Control activities until you get on the rooftop to protect your celebrity, then throw one of the attackers off the roof.
During a Crowd Control activity, there is a level where you must protect someone and there is a trampoline somewhere in the mission. Throw a person onto the trampoline and watch as they fly off to get three gold stars in throwing and the achievement.