# Cross-Avatar Interactions with Avatar Dynamics

> VRChat [\#AvatarDynamics](https://twitter.com/hashtag/AvatarDynamics?src=hash&ref_src=twsrc%5Etfw) enables Avatar-to-Avatar Interactions.  
>   
> Have you tried the spray can in the Avatar Dynamics Hub world?  
>   
> This is a Contact Receiver. It reacts to a Contact Sender from [@Yash884](https://twitter.com/Yash884?ref_src=twsrc%5Etfw)'s avatar lighter!  
>   
> VRCContactReceiver / VRCContactSender: [https://t.co/QNAfEriHQI](https://t.co/QNAfEriHQI) [pic.twitter.com/ss2ut2ZACT](https://t.co/ss2ut2ZACT)
> 
> — Haï~ (@vr\_hai) [March 7, 2022](https://twitter.com/vr_hai/status/1500666708813561859?ref_src=twsrc%5Etfw)

Contacts allow you to have cross-avatar interactions such as the one above.

> The lighter has a VRC Contact Sender tagged with "Fire".  
> The spray has a VRC Contact Receiver tagged with "Fire".  
>   
> When the lighter comes in contact with the spray, the spray bursts into flames!  
> The spray enables its own VRC Contact Sender. It will light up other Receivers! 🔥 [pic.twitter.com/FYBHPC7ROn](https://t.co/FYBHPC7ROn)
> 
> — Haï~ (@vr\_hai) [March 7, 2022](https://twitter.com/vr_hai/status/1500666715067322372?ref_src=twsrc%5Etfw)

The tweet above explains it perfectly, by creating a custom tag as such, you can make a contact reciever that allows contact senders with the same exact tag to send signals to it.

<p class="callout warning">Both tags must have the exact capitalization!</p>

[![image-1662171033103.png](https://vrclibrary.com/wiki/uploads/images/gallery/2022-09/scaled-1680-/image-1662171033103.png)](https://vrclibrary.com/wiki/uploads/images/gallery/2022-09/image-1662171033103.png)

So if you were to create a Contact Sender with a the tag **"Fire"** you could interact with the avatar's spray can in the tweet seen above and set it ablaze! You can apply this idea to nearly every avatar to create special cross-interactions with avatars!