Bold / Strong :- This tactic is also suggested by some SEO Experts

Bold / Strong :- This tactic is also suggested by some SEO Experts that include your Keywords into Bold / Strong Tags . But research have proved that it doesn’t carry any SEO Importance ( Very Small ) .  So you can make 2-3 Small Keywords Bold in your article . Don’t exceed the limit and also don’t add Bold / Strong Tag to Long Tail Keywords as it will look spammy to readers .
Italic :- Surprisingly, italic text have more importance and carries much SEO Weight then Bold/Strong Text . So I suggest to use your targeted keywords inside Italic Text .
Interlinking :- Interlinking is suggested by nearly every blogger and most of them do it too . But it doesn’t have any connection with SEO . Yet its a must have component to use in article in order to decrease bounce rate of your website / blog and keeping visitors on your site for more time . It can be used to pass some Page Rank juice across the inner pages .