Watch out for small words that can actually reduce the impact of your bio. For instance, I recently reviewed a bio in which the writer described himself as “very experienced”. I took out the “very”. It’s redundant in this example, as is highly in “highly educated” or reputable in “reputable law firm”. (I assume you’re reputable, don’t put doubt in my mind by feeling you have to reassure me.)
The use of these words is often an attempt to stress a point, but they’re almost always unnecessary.