Toast bread under broiler or in a toaster oven. Meanwhile, cut garlic clove(s) in half, lengthwise. When the toast has browned, remove from oven. While still hot, rub the cut side of a garlic clove over the top of a slice of toast (careful--a little rubbing goes a long way!). Using a pastry brush, brush each slice with olive oil. Salt and pepper each slice to taste. Serve immediately.