I also use "right" and "ok" sometimes, with the right inflection it can signal continued interest, though you have to be careful not to sound impatient. Anothe

I also use "right" and "ok" sometimes, with the right inflection it can signal continued interest, though you have to be careful not to sound impatient. Another technique I find effective in active listening is to periodically rephrase/summarize/"ask for clarification" on the last minute or two. (The last one even when I fully understand the subject.)