"Mom, he pushed me!" Even kids know how to push and shove their way through a fight. You can Slam your opponents (or allies, for that matter) to move them away from you.
The attacker makes an Attack Roll using the Hand-to-hand Weapon Skill and the defender makes an Evasion Roll. If the attack is successful, the attacker and defender make opposed Might checks. As mentioned in the Might skill, if the combatants have different Size scores, each should add its Size Muscle Bonus when attempting or defending against a Slam.
If the attacker's result is higher than the defender's result, the defender moves 5 feet away. If the attacker’s result is more than 5 points higher than the defender’s, the defender moves 10 feet away. No damage is incurred by a Slam.