In the mobile applications, select the Show activity action from the user's detail screen. There are a few ways to get a user's detail screen:
In the browser-based application, navigate to the user's home page, which includes an activity display. Again, there are a few ways to do so:
The user's activity display listss items created by that user that are visible to you.
Note also that you can also add the user to your bookmarks, and access it through them.
In the mobile applications, select the Show activity action from the group's detail screen, which you can get by tapping the group entry in the Groups screen.
In the browser-based application, navigate to the group's home page, using the link in the group list.
The group's activity display lists all items created by members of that group that are visible to you.
Note also that you can also add the group to your bookmarks, and access it through them.
One way is to create a box and save items there. For example, save places for restaurants, shops, or hotels you liked; create posts, take pictures. Then you can make the box and items visible to others, or keep them private; you can even make some items private, and others more visible, to customize the trip diary for different audiences. You may want to add the box to your bookmarks for quick access.