Noted William Shatner impressionists Maurice LaMarche and Kevin Pollak talk about their love for Shatner on 3/22/2021. In 2009 LaMarche declared March 22nd the first "Talk like William Shatner Day."
The best pointer Maurice gave about imitating Shatner on a previous Shatner Day was the sense of contempt shatner had when he was told to say sabotage instead of "sabotaage". I don't say Sabotage. YEWWW...say Sabotage. I say sabotaage.
William having trouble remembering his lines is the magic bullet in a Shatner impression. Pause like you've forgotten your line, stammer out a little then say the rest of the line real fast when you remember.
Great stuff guys! He was in an episode of Columbo , like you guys are can't remember the title , but to see two legends on screen was awesome!!! Peace and love, Vic from London.