Words not to use in a presentation

We often use certain words such as You Know, Like I said etc in the presentation knowingly or unknowingly. In the blog post Never Ask 'Does That Make Sense? following words are mentioned not to use in a presentation . Following indicates the  uncertainty on the part of the speaker about the accuracy or credibility of the content. and Doubt about the ability of the audience to comprehend or appreciate the content.
• "You know..." as if to be sure the listener is paying attention
• "Like I said..." as if to say that the listener didn't understand
• "Again..." as if to say that the listener didn't get it the first time
• "I mean..." as if to say that the speaker is unsure of his/her own clarity
•  "To be honest..." as if to say the speaker was not truthful earlier
• "I'm like..." the universal filler which says absolutely nothing

While all of the preceding cast doubt on the competence of the presenter or the audience, another group of phrases and words casts doubt on the content itself:

• "Sort of"
• "Pretty much"
• "Kind of"
• "Basically"
•  "Really"
• "Actually"
• "Anyway"

Dont forget you should never ask "Does that make sens"?