Click once on the name "Uganda_district.shp" in the Table of Contents to make it active, as in the picture below.
Now it is "active." Themes must be active to work with them (such as to open their attributes table, identify them, change their legend color or symbol, etc.).
(NOTE: If something does not seem to be working when you try it, be sure to check that the theme is active; that is often the problem.)To reveal the identity of a feature on the map and the information associated with it that is stored in its attributes table (now hidden from view), click on the left-most icon in the second row of buttons at the top, the Identify tool
and then click on the feature of the map that you want to identify.
(Note: when you open a View in ArcView you are already in "identify" mode, which is indicated when the cursor appears as a cross-hairs with a small "i" to the right when placed over a map.)
After doing so, click on one of the districts in "Uganda_district.shp" on the map. A window will pop up with the heading Identify Results, providing the name and other attribute information about that area selected. (I stretched the window out for better viewing here.)
On the left-hand side of the "Identify Results" window is the name of the theme being identified. On the right side is a table with two columns: in the left column, the "field" name is displayed and in the right column is the "value" (or result) for that "field." The term "field" is traditionally used when discussing databases and simply refers to a variable of a theme.
For example, the "value" for the field "Adm1" (which stands for a level-one administrative unit) is "Luwero."
(Note: when you see the value "-99" in a table, that means that Arcview has no data for that item.)
Usually, data on several "fields" will be present for a particular theme.
If you repeat the process, that is, click on several areas to identify them, the information about each area will be listed on the right side of the window.
Now close the Identify Results box.
When we identify features of a polygon theme, we click anywhere within a polygon feature on a map. To identify features of line or point themes, we must click directly on them. Make the theme "Iganga_topog.shp" active and display it in our View. Zoom to the active theme to clearly see the contour lines.Click directly on one of the elevation contour lines in that theme to identify its features.
Identify the fields available for that theme. What is the most important field in the theme for us?Now identify the fields in the theme "Lews_livestock.shp." Remember to make the theme active and zoom to the active theme. These points represent the location of households in a study examining livestock raising in Uganda. What do you need to do first? Also, what other fields would you want to have in this theme if you were examining pests in livestock?
We will learn how to add data to such themes in a later Step.
Uncheck the boxes next to all the themes in the Table of Contents, except for "Uganda_district.shp," so that only the map of districts is displayed. Make the theme active and zoom to the active theme.
To label features in a theme, we need to tell ArcView which field we want to label on the map. Go to the top row of buttons at the top of the screen and click on the Theme Properties button.
This brings up the Theme Properties dialog box.
In the left column of the dialog box, click on the Text Labels icon.
In this dialog box you can change the placement of labels by clicking on the desired Text button.
Notice the category "Label Field" in the dialog box. To the right of this category is the box where we indicate the field to label. We want to select from the drop-down list for this box the field "Adm1", which has information on the names of the districts.Click on the down arrow to the right of this box to bring up the drop-down list. Select "Adm1".
Click on the OK button in the dialog box. The dialog box will close.
Next, click on the Label button in the second row of buttons at the top of the screen.
Now click on one of the districts. The name of the district will appear on the map.
You could click on several other districts to reveal their names.
To remove the "handles" around the district name, click on the pointer arrow in the second row of buttons at the top of the screen. 
Then click elsewhere on the map .
You could also label all features in a field at once by selecting from the menu at the top of the screen, Theme and then Auto-label from the drop-down list. We will not do that here, though, because having the labels for all the districts on our map at the same time would make it appear too crowded.To remove labels from a map, select from the menu at the top of the screen, Theme and then Remove Labels from the drop-down list.
We have learned to identify and label features on a map.
We also need to be able to display the spatial patterns of the values revealed in the Identify Results box (see Step 7). Before doing so, we first need to understand how to change the colors and symbols in our maps.