While Frisk anchors their weapon, Papyrus tentatively offers a hand for them, just in case. He also shifts his weight a bit, trying to maintain a steady stance. Since he lacks a proper weapon for anchoring, he'll have to rely on his own stature to make up for it.

Still, he raises his other hand.

"I, THE GREAT PAPYRUS, AM USED TO RAGING RAPIDS! THE RIVER CONNECTING THE VARIOUS REGIONS OF THE UNDERGROUND IS A PRIME LOCATION FOR CARDIOVASCULAR ACTIVITIES... EVEN IF I LACK THE HEART FOR THE ACTUAL CARDIO PART OF IT."