This is because, While people are in Travel they feel Boared & just to avoid this they Talk to other travellers. If they like each others views & their personality this can lead to exchange of contact details(such as Phone no, address, etc).
& this is how train journeys lead to discovery of new friends.
Answered by
MAKHAN CHOR
, an ibibo Citizen,
at
6:45 PM on February 07, 2008