Formal:
* J'ai hâte de [verb infinitive]. (I'm looking forward to [verb infinitive].) - This is the most common and formal way to express anticipation.
* J'attends avec impatience [noun]. (I'm eagerly awaiting [noun].) - This emphasizes the feeling of anticipation.
Informal:
* J'ai hâte! (I can't wait!) - This is a more casual way to express excitement.
* J'ai vraiment envie de [verb infinitive]. (I really want to [verb infinitive].) - This emphasizes the desire to experience something.
* Je me réjouis de [noun]. (I'm looking forward to [noun].) - This is a more neutral way to express anticipation.
Example sentences:
* J'ai hâte de vous voir. (I'm looking forward to seeing you.)
* J'attends avec impatience les vacances. (I'm eagerly awaiting vacation.)
* J'ai hâte! (I can't wait!)
* J'ai vraiment envie de manger des crêpes. (I really want to eat crêpes.)
* Je me réjouis de ton anniversaire. (I'm looking forward to your birthday.)
You can choose the most appropriate phrase based on the situation and your relationship with the person you are speaking to.