Which activities to rank better?
 

First thing you need to do proper on-page activities with all elements of on-page included in that like image optimize, sitemap etc and after that you can continue your work with off-page activities like directory submission, article submission, social bookmarking etc...

On-Page and Off-Page both are important for better ranking but firstly On-page optimization is needed use internal linking, image optimize, responsive design, sitemap. Then after you can work on Off-Page optimization.

All SEO On-Page and Off-Page both activities are important for better ranking and work for social media.

Hello!!
You can check your 1st on-page in meta title & description, heading 1 to heading 6, sitemap, page layout, mobile friendly site, footer link, canonical tags, robot.txt etc..
Off-page article submission, press release, forum post, profile link, social bookmarking, classifieds ads post, search engine submission etc.. but before submission check that website domain authority it always more than your website its one type of beneficial to your website.

SEO Off page Activity are the Best way Promote the Business.

Article submission
Blog Submission
Bookmarking submission
Web 2.0 Submission
Guest Posting
Yahoo Answering
Images Posting
Video Posting

SEO stands for search engine optimization and it is used for boosting up the rank of the keywords and website. You will get a higher visibility on the web and get the higher rank on search engine pages. It is helpful in getting the good number of customers too.

For getting better ranking for website go through Off page and On page seo techniques

forum article or blog submission are the best techniques which helps to get better rankings in search engines

I don't think directory submission, article submission and social bookmarking are still going to work. Unfortunately, those techniques are not anymore beneficial. It is like building links for the sake of having backlinks. I suggest that if you want to build links, stick to quality and relevant sites.

Both On page and Off Page Optimization are important for the page rank in Search engines.

Web 2.0 and Article Submission is very good to make your website rank better.

Yes, i agree with you, On page optimization and Off page optimization both are important for better ranking.

Forum posting
Micro blogging
Quality content
keyword research
guest posting
Article submission
local listings
blog commenting
video sharing
QnA
Title tag
Meta description
ppt/pdf

To increase keyword ranking, make the perfect combination of these optimization methods -

On-site Optimization.
Keyword Density.
Interlinking.
Off-site Optimization.
External Backlinks.

To rank better in a search engine you need to follow both SEO techniques to attract traffic towards web page.
Off-page SEO technique
On-page SEO technique