Moving from "we've just been going on a few dates" to "we're now officially in a relationship" can sometimes be a murky, ill-defined transition. How do you know when you've hop scotched from having casual, get-to-know-each-other outings to being exclusive? What are the definite telltale signs that you're officially somebody's boyfriend or girlfriend?

Here are the 10 telltale signs that you're now officially in a relationship.

1. You know you're in a relationship when you answer the phone and talk without using each other's name. "Hi, it's me. What are you up to? You want to go for a bike ride this afternoon?"

Clinical term: Early Stage ESP (or alternately: Call display).

2. You know you're in a relationship when you casually recount your weekend activities to colleagues on Monday morning with, "Oh, we ordered pizza and then we watched the game."

Clinical term: growing prominence of plural possessive – a good thing.

3. You know you're in a relationship when you no longer get sweaty palms in nervous anticipation of seeing that special someone. If your hands do get clammy at this stage, it's not because you've been hugging a double latte waiting for him or her to show up.

Clinical term: sweatus interruptus.

4. You know you're in a relationship when you spend a weekend afternoon watching the game when, truth be told, you don't even like watching the game.

Clinical term: mutually supportive relationship behavior (or, alternately: he grabbed the remote first).

5. You know you're in a relationship when your mate says, "you wore that same outfit yesterday, right?" and you don't even bother to flub for an excuse.

Clinical term: growing confidence quotient (or, alternately: a growing aversion to doing laundry).

Page 1 of 2 – Find out 5 more ways you can tell if you've moved from dating into a full-on relationship on page 2.

6. You know you're in a relationship when you wear his hockey jacket not because it's cutesy and romantic but because the AC is on over-drive and you're shivering.

Clinical term: strong indicator of a sharing relationship.

7. You know you're in a relationship when you realize there's whole milk in the fridge – yet you drink skim.

Clinical term: unconditional nurturing in an adult relationship.

8. You know you're in a relationship when the new-ish person in your life reminds you, "Hey, isn't next week your Dad's birthday? Should we pick up a bottle of his favourite scotch?"

Clinical term: flourishing thoughtfulness. (Or, alternately: your new romantic interest likes the same kind of scotch!)

9. You know you're in a relationship when he automatically stirs your coffee with his spoon.

Clinical term: mate exhibits predilection for spooning, bodes well on the intimacy front.

10. You know you're in a relationship when you happen to stumble onto your mate's Facebook page and – ping – you see the heart-warming, aw-shucks, spine-tingling, melt-your-knees, lump-in-your-throat message: "Mark has updated his relationship status from single to in a relationship".

Clinical term: It's now official!

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