LOL for instance here is a chat packet.
Code:
5b //seq
80 55 80 56 //ack
00 06
80 01
84 8b 09
00 00
00 3a 80 32 00 36 00 36 //tell
00 10 //space
00 11 //"
00 2c 80 30 00 36 80 34 80 39 80 39 00 3c //Xalissx
00 11 //"
00 10 //space
00 24 80 32 00 36 00 36 80 37 //Hello
00 00 80
Which is pretty straight forward same with character creation packets.