Greetings to all you students we've been talking with in IRC (#kde-soc and your chosen team's channel(s)) and on the mailing lists. By now, hopefully you have met and talked with your teams, and begun formulating your plan for GSoC, with advice from your prospective mentor(s).
I hope you have followed Myriam's advice and done your homework. If you have worked on some junior jobs, have your KDE developer credentials, joined the necessary lists *including KDE-soc*, you have a good foundation built.
Pro-tip: always check out the links in the /topic of your IRC channels. The #kde-soc channel topic is particularly rich.
Many prospective mentors hang out in that channel, but not all. Us admins are there as often as possible as well. I'm always willing to help edit a proposal for grammar, spelling, organization, formatting, etc. And I can be brutally honest, so if you ask my opinion, be aware that I won't waste your time with anything but the truth.
Now is the time to log into melange, and submit your proposals. If you have not yet had a team member vet your plan, give them the link to your melange proposal and ask. Don't waste their time with mere ideas; you need a clear plan of action, and a realistic timeline.
Go, go, go!