This shop has a separathe entrance and the exit separatelyexit.

The two men awere not Japanese apparently.

I think they' were tourists and doidn't understand Japanese.

I see sometimes somee visitors from overseas wandering around the exit looking for the entrance, but in many cases they find out where the entrance is after observing the flow of the people.

I think the shop must improve the singsits signs, since many tourists visitshop there recently. ¶
now.

Incidentally, it was the first time I saw those whoanyone confidently enter from the exit without any hesitationg.

This shop has tThe entrance and the exit of the shop locate separately.

I seeI sometimes some visitors from overseaee some foreign visitors wandering nearound the exit looking for the entrance, but in many cases they find outrealize where the entrance is after observing the flow of the people.

This shop has the entrance and the exit separatelyd.

The two men awere not Japanese apparently.

Based on the Japanese text, I think it would be better to say “The two men did not look Japanese.”

I think they' were tourists and don'idn’t understand Japanese.

Since you are telling a story about something that happened in the past, you should use the past tense.

I see sometimes see some visitors from overseas wandering around the exit looking for the entrance, but in many cases they find out where the entrance is after observing the flow of the people.

I think the shop must improve the singns since many tourists visit there recently. ¶

This sentence is fine! But personally, I would say “many tourists are going there recently.” That sounds more natural to me.

Incidentally, ithat was the first time I saw thossomeone who confidently entered from the exit without any hesitationg.

I think the shop must improve the singns since many tourists visited the area recently. ¶

Incidentally, it was the first time I saw those who confidently enter from the exit without any hesitationg.