Sumesh,
Many different ideas come to mind but the success potential comes down to the type of service or product you are providing.
If you could share a bit more about what you are promoting, I am sure the community could better help.
Some of the basics however are to make sure you have good space in your booth area to allow people to step out of the "traffic" and not feel rushed.
You might also consider staffing your space with members of both sexes. Some people are comfortable talking with members of their own sex ect.
Make sure your booth easily conveys what you do and why you are there. We always either create or mock up our booth layout and solicit unbiased opinions about what they see and what message they get and tweak as needed.
Sometimes a random and unique item placed prominently in the booth with your logo or slogan on it gets the browsers to give you a second look.
Rehearse your "elevator pitch". That 30 to 45 second summary pitch of what your business does or can do for the customer. Finely tune that into a few variation that you can use during the trade show. Sometimes that brief into will catch the person you are talking to or someone within hearing range.


