Balloons appear in WeChat videos because users use balloon stickers or special effects in WeChat videos. In the WeChat video call, you can adjust the video picture through the special effects function. One of them is balloon special effects. When making video calls with friends, you can trigger different balloon effects to make the chat more interesting. One-handed thumbs-up: This will show a bubble-like special effect in the video. Thumb up with one hand: this will present different bubble effects. Hands thumbs up: this will trigger the special effect of setting off fireworks. Praise with both hands: this will turn the video into a special effect on rainy days. Holding Bi Ye in both hands: This will pop up a confession balloon in your hand. Hand-to-hand comparison (different gestures): This will make colorful films fall and create a romantic atmosphere. Hands hip-hop gesture: This will open KTV mode and make the video more fashionable. Wechat is an instant messaging software launched by Tencent on 2011121,which supports mobile operating systems such as Android and iOS. It is aimed at smartphone users.