How do you say well in french. as i think this?

It depends on the context of how you're using "well" in English. Here are some possibilities:

For "Well, I think..."

* Eh bien, je pense que... (Most common)

* Bon, je pense que... (Less formal)

* Alors, je pense que... (Indicates a shift in thought)

For "Well, I think that's..."

* Eh bien, je pense que c'est... (Most common)

* Bon, je pense que c'est... (Less formal)

For "Well, you know..."

* Eh bien, tu sais... (Most common)

* Bon, tu sais... (Less formal)

For "Well, it's..."

* Eh bien, c'est... (Most common)

* Bon, c'est... (Less formal)

For "Well done!"

* Bravo!

* Bien joué!

Let me know the full sentence you're trying to translate, and I can give you a more accurate translation.