The Giant stoops down and selects a model (Giant player's choice) that is either in base contact or touching a model in base contact (Giants have a long reach). The target may make a single attack to try to fend off the Giant's clumsy hand. If this attack hits and wounds the Giant, the Giant's attack fails, otherwise the Giant grabs the model and the player rolls a D6 to see what happens next:
Stuff into Bag: The Giant stuffs the victim into his lug along with sheep, cows and other plunder. The model is effectively a casualty and can do nothing whilst in the bag, but if the Giant should he slain any enemy trapped in his bag are freed unharmed at the end of the battle. Victory points are not awarded to the enemy for freed models.
Throw Back into Combat: The victim is hurled hack into his own unit like a living missile. This causes a wound on the victim with no saves of any kind allowed, and D6 Strength 3 hits on the unit.
Hurl: The victim is hurled into any enemy unit within 12" of the Giant - randomly determine which. This causes a wound on the victim with no saves of any kind allowed, and D6 Strength 3 hits on the unit. Saves are taken as normal. If no enemy units are in range, treat this as a Throw Back into Combat result instead.
Squash: This doesn't really bear thinking about. Suffice to say the model becomes a casualty and is removed from the game.
Eat: The Giant gobbles his victim up, swallowing him whole. The model is removed from the game.
Pick Another: The Giant stuffs the victim hurriedly into his bag or under his shirt (or down his trousers if they're really unlucky) and attempts to pick up another victim. The second victim makes a single attack (as above) to avoid being picked up. If the Giant rolls a succession of 6s it is possible for him to amass a collection of trapped foes in his pockets and bags (not to mention down his trousers). Trapped models are effectively casualties, exactly as explained in the Stuff into Bag result described above.