How to tell a girl who is used to it during the trip?

Confession doesn't need too many flowery words. The key is to be sincere and find a suitable time, such as finding a suitable place after dinner at night, such as the seaside at night. If you really like her, say it in your most sincere words, and don't talk nonsense. Then there is a deep hug. What women want is security and a shoulder to lean on.

good luck