Just a few head ups for those who are going to Thailand
Transportation-wise
There are four types of transportation that you can take. One is motorcycle. Two is took took (which look like this
http://www.rd1677.com/backoffice/PicUpdate/35994.jpg ). Three is Taxi. Four is Sky train and sub way.
Motorcycle is usually used for short distance transportation. It is the fastest on-road vehicle in Bangkok due to the traffic. The ride should "NOT" cost more than 3 USD or 90 baht, so be sure to ask the driver how much before you get on because there is no meter like taxi. It usually cost about 1 to USD dollar or 30 to 60 baht for about 2 kilometres drive. If it's more than 5 kilometres, you should consider other transportation such as taxi
Took took have similar system as motorcycle except it can hold 3 people maximum and can take you further (may be like 10 kilometre ). However, it will be slower than motorcycle.
Taxi is the most reliable transportation since it should be able to take you anywhere and there is a definite rate that you can check. The starting cost is about 1 USD or 35 baht(I am not really sure about the rate, however there should be a rate table in the taxi)
Sky train/ sub way will be the most reliable transportation if you know where you are going since it will take you to a definite destination. This kind of transportation will be useful when you are going to a mall.
Keyword for going to the competition place
If you say "Baiyoke sky hotel", the driver will likely misinterpret your destination. The reason is that there are two baiyoke buildings. We usually call them "Baiyoke 1" and "Baiyoke2". The competition place is at "Baiyoke 2". So you should tell the driver "Baiyoke 2" or "Baiyoke song (song = 2 in Thai)". However if they sent you to "Baiyoke 1", don't be too grumpy, because they are close to one another (walkable distance, except the passage will be "very crowded" since there are market places all round the streets ).
Shopping-Wise
There should be no problem if you are shopping in a mall. However if you are buying stuff other than food on the street side, make sure to have a thai person to help you ask for the price. The reason is some merchants might rip you off because they treat you as a foreigner.
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if you have any other question feel free to ask me, I am more than willing to answer them.