Suggestions

• Why don't we + infinitive
• Why don't we go to the cinema?
• How about + noun/verb-ing
• How about that restaurant?
• How about watching a film?
• We could + infinitive
• We could play tennis.
• Let's + infinitive
• Let's buy something to eat.
• Shall + subject + infinitive
• Shall we stay at home?

Gratitude

• Thank you for + noun/verb-ing
• Thank you for your visit.
• Thank you for visiting me.
• Thanks for + noun/verb-ing
• Thanks for bringing a present.
• Thanks for your present.

Enjoyment

• What I liked/enjoyed most was...
• What I liked most was the music.
• Enjoy + noun/verb-ing
• I enjoyed every type of music.
• I enjoyed listening to music.
• Have fun / Enjoy yourself
• At the party, I had fun.
• At the party, I enjoyed myself.
• At the party, I enjoyed a lot.