A whoosh or a click makes a transition or a move felt. Adding a sound effect in Premiere Pro is easy; what makes the difference is landing it on the right frame without drowning the speech.
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If the sound cuts off abruptly, put an audio transition on the clip end: select the end and press Cmd/Ctrl+Shift+D. A short fade-out removes clicks and hard stops.
Sylba's SFX section has more than 2000 editing sounds in 12 categories: whooshes, risers, clicks, pop-ups, hits, glitches and more. Click a sound once to hear it in the panel and double-click to add it to the timeline; no hunting for files and importing.
A sound on every move is distracting; choose transitions, text entrances and moments of emphasis. Do not repeat the same sound back to back; rotate between a few similar ones. Do the final listen on a phone speaker rather than headphones; that is how most viewers hear it.
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