In addition to that, we see that the Spider-Man costume is actually designed to be at least slightly adhesive.
In addition to the adorable video, we also get a chance to see the actual Spider-Man costume a bit more up close and personal then we really have before.
One child asks Holland if he can climb buildings and the actor shows that he can because his suit is sticky.
To prove this he sticks a pen to his hand, which does get stuck there, which is a neat trick.
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Tom Holland, Spider-Man: Homecoming, Visits Kids at Children's Hospital Los Angeles