Table 1 Rating scale items

1.

I find the ECA likeable.

2.

I find the ECA engaging.

3.

I find the ECA easy to understand.

4.

I find the ECA life-like.

5.

I find the ECA humorous.

6.

The ECA kept my attention.

7.

I would like to interact with the ECA again.

8.

I enjoyed interacting with the ECA.

9.

I felt as if the ECA was speaking just to me.