As a single male and an old male at that I made friends with 2 blokes I was sitting next to on the plane one of the guys was Japanese and worked in Bangkok the other another Australian who was working whilst travelling. In a previous visit I was in thailand I made friends with 2 Americans who showed me all around the city including the more seeded side which was a bit of an eye opener. I visited Kanchanaburi and western people were everywhere and just happy to chat and tell you information about the local area. so easy to meet with people. Never ever did I feel alone.