He holds up the hand with the black glove on it that hides the missing pinkie finger beneath it but then transfers the sword into it so that he can hold out his right hand to Senku.

"It's nothing serious this time but that could change depending on the situation."

He does have the matching glove to the one currently on his hand if he needs to wear it. "Do you think that might do enough or will it simply melt the glove?"