Counting in Thaï is fairly simple to learn !
No, it's true, the principle is very simple. Just learn the numbers 1 to 10 and then say 20, 100, 1000, 10 000, 100, 000 and one million and from there, you know how to count in thaï language. After that it is just a set of additions or multiplications. Either you multiply by a figure that is set before either you add a figure that is behind. For instance 13 is said ten-three (10 +3 somehow), 30 is said three-dix (3 x 10) ect ...

Count from 1 to 10:
1 nuung
2 song
3 saam
4 sii
5 ha
6 hok
7 jet
8 bpéét
9 gaao
10 sip

Les nombres à connaitre :
20 yii sip
100 roï
1000 pan
10 000 muun
100 000 sèèn
1 000 000 laan

Well as in all languages what we first seek to know how to say is the usual platitudes. Saying hello, asking the other how it goes, what's his name, also giving our surname so here is how you deal with that in thaï language for a conversation between me (yes, I am egocentric and then?) and women :

- Sawatdi krap
Hello

- Sawatdi. Sabaïdi maï kha.
Hello. how are you?

- Sabaidi. Khun la krap
I'm fine ! And you?

- Sabaidi. Di chan chue Lia. Khun chue a-raï kha?
I'm fine. My name is Lia. And you, what's your name?

- Pom Chue Michael. Pom bpen kon farangséet
My name is Michael. I am French.

Well, this is a start. If you get understood it is well!