Neice aged 8, praise junkie since 18m, now can't hold a conversation without announcing her excellence in all things academic, skills, sport, craft, cycling, you get the idea.
The complacent statement above qualifies anything, derails any talk about anything else and is getting wincingly unattractive. She is capable and not exceptional, as it happens. And popular with friends, so at least it's not a peer problem.
So do you tackle the fact it isn't true? Please God it's a phase in her arsenal of attention-seeking devices, which I am hoping will disappear by magic. But she's 8, not 3, time is coming sooner when she is going to get a shock if it isn't dealt with kindly.