I'm designing a web app specifically for all tablet traffic. I'm going with the very popular left side panel navigation like youtube,fb etc. The icon to open/close the navigation is the standard icon and there is only a logo and a search icon/dropdown on the top navigation.
Is it best practice to default open the side navigation on first page view on the site? This will cover about 25% of the landingpage/homepage, which isn't ideal. I'm scared if I don't default open, an inexperienced user will not know how to open the side menu.