Hey!
I'd start by a good helmet. A helmet is something you really need to care about, don't go for the cheapest out there, if possible go for a known brand. There are some nice cheaper brands that, besides not being as good as Arai, Shoei, etc, they're really nice. I'd go for a CMS or a LS2.
Next step, a nice jacket. I use a leather jacket with protection on the shoulders and back, but those can be more expensive, so try to go for one made of fabric, but keep in mind that it has to have the protections, these saved my life once.
I'd recommend some leather gloves, with finger and palm protection as well.
If you have the possibility to buy some pants with protection on the knees, that's great, I'm looking for some at the moment.
And finally, comfortable shoes/boots, without shoelaces. If you don't have some of those, make sure to tuck the shoelace into the shoe so it doesn't get stuck in the gear leaver or the brake pedal.
I'd recommend a scarf as well for colder days.
By the way, it doesn't matter what bike you ride, if it is a scooter, is it a sports bike, your safety is way more important than anything else, don't forget that on a motorbike, you're the bumper.