First of all I think of any name. Eg: Steve.
I take the first two letters of the name: st.
Then I list feelings that start with the letters st.
Note: I kind of mentally use this template to help me think of a feeling:
I might feel X about something.
(Where X is the feeling.)
Example: I might feel stringent about something.
Here are some more st... feelings:
I want to list a wider range of feelings. To do this I take the last feeling listed at step 2: In the above case, stubborn, and treat it as an adjective and ask "What kind of thing could be described with the adjective stubborn?"
Eg: a mule. Thus:
Then I ask myself: What kind of feelings are associated with a mule? (Note: This can be how a person could feel about a mule or how a mule might feel.)
From that point I can generate more feelings by either using the first method (I would take the be of beastly and use it list feelings), or I would use the second method and name something that is beastly (Eg: Dracula) and list possible feelings about that.