The writer reveals information about a character through his personality, thoughts, words, and actions. Also, writers include of how they feel and how they speak and act towards the other characters.
Answer:
Capitalize places in your sentence. For example, European. I don't understand the rest of your question though.
2) Both mars and earth have carbon dioxide ice clouds
I would assess this info in the context of the work expected from them. Are they building websites for you? While the site appearance does reflect somewhat on their image, it may have little or nothing to do with their value otherwise.
Hand Gestures are ESSENTIAL
visual aids are great if possible
short simple sentences so easier for the audience to understand
clear loud voice, make sure you are aware of the intent behind your voice - is it to persuade (loud projecting booming persuasive), create sympathy (quiet, urging) etc etc.