You have a nice smile, you should smile more

çok çok teþekkür ederim

 Cok guzel gulumsuyorsun, daha cok gulumselisin

daha sýk sýk gulumsememelisin

my try but it looks like too many  mmmmmmmmmmmmmmmmmmmmmmmmmm

and I read the translation wrong I translated as more often oppssyyyyyyyyyyy daisy doooooooooooooooo

Gülüþün güzel, daha sýk gülmelisin.

well its a darn site shorter

 correct only last word must be gülümsemelisin

Daha sýk = more frequently

Sýk sýk = frequently

and you used 1 -me to much so you wrote the person mustnt smile

(yes my version is shorter i prefer to use gülmek in stead of gülümsemek its so long haha)

 thank you  Melike

Herkese teþekkür ederim

GÜLMEK and GÜLÜMSEMEK are not two identical verbs that can be interchangeably used.

Gülmek = to laugh

Gülümsemek = to smile