How to compliment someone in Italian

If you want to compliment someone on their achievements, you can say:

• (Che) Bravo! – Good job!
• Bravissimo! – Excellent job!

If you want to compliment somebody in the specific circumstances of a wedding or graduation or a promotion at work, you can easily say:

• Congratulazioni! – Congratulations!
• Complimenti! – Congratulations!

and you could add depending on the context:

• Congratulazioni te lo sei meritato! – Congratulations you deserved it!
  Complimenti per il traguardo! – Congratulations for the achievement!

If you want to make a physical appreciation, you can use the formula:

Che + adjective + noun

• Che bravo studente! Good student!
• Che begli occhi! What a nice eyes!
• Che bel bambino! What a beautiful kid!

If you want to make any kind appreciation, you can use the formula:

Come + verb

• Come sei bella oggi! How beautiful you are today!
• Come sei stato bravo oggi! How good you were today!
• Come parli bene italiano! You speak Italian really well!
• Come guidi bene! You drive really well