Chan/Pom kit tung khun.
Chan = I (feminine)
Pom = I (masculine)
Kit-tung = Miss
Khun = You
pom kit teung koon-i miss you
kitthung na kup
Chan rak khun hmung kan
pom kit teung khun
if you are a male you would say, pom kit teung mak makif you are a female you would say, Chan kit teung mak mak
pom kit teung koon-i miss you
pom khitteung chan
You can say "ฉันคิดถึงคุณ" (chan kit teung khun) to say "I miss you" in Thai.
kitthung na kup
To say something that is too much, you might simply say "Mak-Gern-Pai"
Just say i miss you too :)
"I miss you too" is "Yo también te extraño"
For Mr. or Mrs or Miss or everyone you are not familiar with and want to call him or her politely, Just say "khun" in front of his or her name.
Chan rak khun hmung kan
Probably that I would miss him too.
In Thai, the word for kiss is "จูบ" (pronounced joo-p).
หัวใจ is how you say heart in Thai.