Some people are even showing more interest in Bitcoin in my City, I am thinking of hosting a seminar about Bitcoin but I want to make sure I invite the right people, have anyone hosted a BTC seminar before? Any good advice on this?
before doing a full seminar(requires spending to rent space, and organising event) do a small "meet-up" such as a informal chat with locals at a cafe/bar
EG put up posters/spread the word/gossip with people that you will be at X drink establishment(or your own business/shop) between [time suitable] each day a certain week for anyone to pop in and have a chat.
where you can gauge the interest and discuss things they may want see, or may be of interest for them to hear if there was a bigger seminar. ask questions, answer questions. gauge the interest and the mood. find out what they want to know and then formulate something that will meet their expectations to want to attend
hint at things informally about ticket prices (gauge the local economy acceptance of how much is acceptable) and figure out how many tickets to offer and thus what amount is needed to cover overall organisation costs..
find out who locally is "expert" in topics. or runs businesses and work out who is good enough to be spokes-people or who from your chats local people want to see as spoke-people
in short
meetups if popular, become seminars, which if popular become regional conferences, which if popular become national conferences