How does a snail communicate with another snail?

Question: How does a snail communicate with another snail?
- Keywords:
  brown garden snail,
  communication
Asked by harrykilner to Brown garden snail on 21 Nov 2017.
- Tomeu the snail answered on 21 Nov 2017:
  
  Great question! We follow snail trails, using our mouth the taste the trail. We also like touching each other a lot.

Question: How does a snail communicate with another snail?