Every week some or the other challenge go viral on social media. Some are creepy, others are dangerous but this new challenge on the block is hilarious. #HornChallenge is keeping social media users busy and spreading laughter. For #HornChallenge, you have to press the face of an unaware friend or an acquaintance as the ‘bus horn’ sounds play in the background.

Every week some or the other challenge go viral on social media. Some are creepy, others are dangerous but this new challenge on the block is hilarious. #HornChallenge is keeping social media users busy and spreading laughter. For #HornChallenge, you have to press the face of an unaware friend or an acquaintance as the ‘bus horn’ sounds play in the background.